Revert of skia: Add support for CHROMIUM_image backed textures. (patchset #17 id:340001 of https://codereview.chromium.org/1623653002/ )

Reason for revert:
New unit test is failing on Windows ANGLE bots:
http://build.chromium.org/p/client.skia/builders/Test-Win8-MSVC-ShuttleB-GPU-HD4600-x86_64-Release-ANGLE/builds/1866/steps/dm/logs/stdio

Original issue's description:
> skia: Add support for CHROMIUM_image backed textures.
>
> I created a new abstract base class TextureStorageAllocator that consumers of
> Skia can subclass and pass back to Skia. When a surface is created with a
> pointer to a TextureStorageAllocator, any textures it creates, or that are
> derived from the original surface, will allocate and deallocate storage using
> the methods on TextureStorageAllocator.
>
> BUG=https://code.google.com/p/chromium/issues/detail?id=579664
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1623653002
>
> Committed: https://skia.googlesource.com/skia/+/92098e691f10a010e7421125ba4d44c02506bb55
>
> Committed: https://skia.googlesource.com/skia/+/7fec91ce6660190f8d7c5eb6f3061e4550cc672b

TBR=bsalomon@chromium.org,cblume@chromium.org,robertphillips@google.com,egdaniel@google.com,reed@google.com,erikchen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=https://code.google.com/p/chromium/issues/detail?id=579664

Review URL: https://codereview.chromium.org/1673923003
diff --git a/src/gpu/GrTexture.cpp b/src/gpu/GrTexture.cpp
index fe5b2c3..249fe98 100644
--- a/src/gpu/GrTexture.cpp
+++ b/src/gpu/GrTexture.cpp
@@ -85,8 +85,7 @@
     : INHERITED(gpu, lifeCycle, desc)
     , fMipMapsStatus(kNotAllocated_MipMapsStatus) {
 
-    if (!this->isExternal() && !GrPixelConfigIsCompressed(desc.fConfig) &&
-        !desc.fTextureStorageAllocator.fAllocateTextureStorage) {
+    if (!this->isExternal() && !GrPixelConfigIsCompressed(desc.fConfig)) {
         GrScratchKey key;
         GrTexturePriv::ComputeScratchKey(desc, &key);
         this->setScratchKey(key);
diff --git a/src/gpu/GrTextureProvider.cpp b/src/gpu/GrTextureProvider.cpp
index 7d720eb..105cce2 100644
--- a/src/gpu/GrTextureProvider.cpp
+++ b/src/gpu/GrTextureProvider.cpp
@@ -39,8 +39,7 @@
         !fGpu->caps()->isConfigRenderable(desc.fConfig, desc.fSampleCnt > 0)) {
         return nullptr;
     }
-    if (!GrPixelConfigIsCompressed(desc.fConfig) &&
-        !desc.fTextureStorageAllocator.fAllocateTextureStorage) {
+    if (!GrPixelConfigIsCompressed(desc.fConfig)) {
         static const uint32_t kFlags = kExact_ScratchTextureFlag |
                                        kNoCreate_ScratchTextureFlag;
         if (GrTexture* texture = this->refScratchTexture(desc, kFlags)) {
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index 060b2a1..ed4ca74 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -149,15 +149,13 @@
 
 SkGpuDevice* SkGpuDevice::Create(GrContext* context, SkSurface::Budgeted budgeted,
                                  const SkImageInfo& info, int sampleCount,
-                                 const SkSurfaceProps* props, InitContents init,
-                                 GrTextureStorageAllocator customAllocator) {
+                                 const SkSurfaceProps* props, InitContents init) {
     unsigned flags;
     if (!CheckAlphaTypeAndGetFlags(&info, init, &flags)) {
         return nullptr;
     }
 
-    SkAutoTUnref<GrRenderTarget> rt(CreateRenderTarget(
-            context, budgeted, info, sampleCount, customAllocator));
+    SkAutoTUnref<GrRenderTarget> rt(CreateRenderTarget(context, budgeted, info,  sampleCount));
     if (nullptr == rt) {
         return nullptr;
     }
@@ -184,9 +182,8 @@
     }
 }
 
-GrRenderTarget* SkGpuDevice::CreateRenderTarget(
-        GrContext* context, SkSurface::Budgeted budgeted, const SkImageInfo& origInfo,
-        int sampleCount, GrTextureStorageAllocator textureStorageAllocator) {
+GrRenderTarget* SkGpuDevice::CreateRenderTarget(GrContext* context, SkSurface::Budgeted budgeted,
+                                                const SkImageInfo& origInfo, int sampleCount) {
     if (kUnknown_SkColorType == origInfo.colorType() ||
         origInfo.width() < 0 || origInfo.height() < 0) {
         return nullptr;
@@ -215,7 +212,6 @@
     desc.fHeight = info.height();
     desc.fConfig = SkImageInfo2GrPixelConfig(info);
     desc.fSampleCnt = sampleCount;
-    desc.fTextureStorageAllocator = textureStorageAllocator;
     GrTexture* texture = context->textureProvider()->createTexture(
         desc, SkToBool(budgeted), nullptr, 0);
     if (nullptr == texture) {
@@ -326,8 +322,7 @@
                                                        : SkSurface::kNo_Budgeted;
 
     SkAutoTUnref<GrRenderTarget> newRT(CreateRenderTarget(
-        this->context(), budgeted, this->imageInfo(), fRenderTarget->desc().fSampleCnt,
-        fRenderTarget->desc().fTextureStorageAllocator));
+        this->context(), budgeted, this->imageInfo(), fRenderTarget->desc().fSampleCnt));
 
     if (nullptr == newRT) {
         return;
@@ -1479,7 +1474,7 @@
 
         SkRect srcR, dstR;
         while (iter.next(&srcR, &dstR)) {
-            this->drawTextureProducer(producer, &srcR, &dstR, SkCanvas::kStrict_SrcRectConstraint,
+            this->drawTextureProducer(producer, &srcR, &dstR, SkCanvas::kStrict_SrcRectConstraint, 
                                       *draw.fMatrix, fClip, paint);
         }
         return;
diff --git a/src/gpu/SkGpuDevice.h b/src/gpu/SkGpuDevice.h
index ec3e158..8bf04b1 100644
--- a/src/gpu/SkGpuDevice.h
+++ b/src/gpu/SkGpuDevice.h
@@ -18,7 +18,6 @@
 #include "GrDrawContext.h"
 #include "GrContext.h"
 #include "GrSurfacePriv.h"
-#include "GrTypes.h"
 
 class GrAccelData;
 class GrTextureProducer;
@@ -53,8 +52,7 @@
      * the resource cache budget. On failure, returns nullptr.
      */
     static SkGpuDevice* Create(GrContext*, SkSurface::Budgeted, const SkImageInfo&,
-                               int sampleCount, const SkSurfaceProps*,
-                               InitContents, GrTextureStorageAllocator = GrTextureStorageAllocator());
+                               int sampleCount, const SkSurfaceProps*, InitContents);
 
     ~SkGpuDevice() override {}
 
@@ -257,7 +255,7 @@
     bool drawDashLine(const SkPoint pts[2], const SkPaint& paint);
 
     static GrRenderTarget* CreateRenderTarget(GrContext*, SkSurface::Budgeted, const SkImageInfo&,
-                                              int sampleCount, GrTextureStorageAllocator);
+                                              int sampleCount);
 
     friend class GrAtlasTextContext;
     friend class SkSurface_Gpu;      // for access to surfaceProps
diff --git a/src/gpu/SkGrPixelRef.cpp b/src/gpu/SkGrPixelRef.cpp
index 3876f17..58f516a 100644
--- a/src/gpu/SkGrPixelRef.cpp
+++ b/src/gpu/SkGrPixelRef.cpp
@@ -76,7 +76,6 @@
     }
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
     desc.fConfig = SkImageInfo2GrPixelConfig(dstCT, kPremul_SkAlphaType, dstPT);
-    desc.fTextureStorageAllocator = texture->desc().fTextureStorageAllocator;
 
     GrTexture* dst = context->textureProvider()->createTexture(desc, false, nullptr, 0);
     if (nullptr == dst) {
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index e29a7f8..cd28eca 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -929,24 +929,14 @@
             !(0 == left && 0 == top && desc.fWidth == width && desc.fHeight == height)) {
             succeeded = false;
         } else {
-            if (desc.fTextureStorageAllocator.fAllocateTextureStorage) {
-                if (dataOrOffset) {
-                    GL_CALL(TexSubImage2D(target,
-                                          0, // level
-                                          left, top,
-                                          width, height,
-                                          externalFormat, externalType, dataOrOffset));
-                }
-            } else {                                                              
-                CLEAR_ERROR_BEFORE_ALLOC(this->glInterface());                    
-                GL_ALLOC_CALL(this->glInterface(), TexImage2D(                    
-                    target, 0, internalFormat, desc.fWidth, desc.fHeight, 0, externalFormat,
-                    externalType, dataOrOffset));                                 
-                GrGLenum error = check_alloc_error(desc, this->glInterface()); 
-                if (error != GR_GL_NO_ERROR) {                                    
-                    succeeded = false;                                            
-                }
-            }  
+            CLEAR_ERROR_BEFORE_ALLOC(this->glInterface());
+            GL_ALLOC_CALL(this->glInterface(), TexImage2D(target, 0, internalFormat, desc.fWidth,
+                                                          desc.fHeight, 0, externalFormat,
+                                                          externalType, dataOrOffset));
+            GrGLenum error = check_alloc_error(desc, this->glInterface());
+            if (error != GR_GL_NO_ERROR) {
+                succeeded = false;
+            }
         }
     } else {
         if (swFlipY || glFlipY) {
@@ -1215,10 +1205,52 @@
     bool renderTarget = SkToBool(desc.fFlags & kRenderTarget_GrSurfaceFlag);
 
     GrGLTexture::IDDesc idDesc;
+    idDesc.fInfo.fID = 0;
+    GL_CALL(GenTextures(1, &idDesc.fInfo.fID));
     idDesc.fLifeCycle = lifeCycle;
+    // We only support GL_TEXTURE_2D at the moment.
+    idDesc.fInfo.fTarget = GR_GL_TEXTURE_2D;
+
+    if (!idDesc.fInfo.fID) {
+        return return_null_texture();
+    }
+
+    this->setScratchTextureUnit();
+    GL_CALL(BindTexture(idDesc.fInfo.fTarget, idDesc.fInfo.fID));
+
+    if (renderTarget && this->glCaps().textureUsageSupport()) {
+        // provides a hint about how this texture will be used
+        GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
+                              GR_GL_TEXTURE_USAGE,
+                              GR_GL_FRAMEBUFFER_ATTACHMENT));
+    }
+
+    // Some drivers like to know filter/wrap before seeing glTexImage2D. Some
+    // drivers have a bug where an FBO won't be complete if it includes a
+    // texture that is not mipmap complete (considering the filter in use).
     GrGLTexture::TexParams initialTexParams;
-    if (!this->createTextureImpl(desc, &idDesc.fInfo, renderTarget, srcData,
-                                 &initialTexParams, rowBytes)) {
+    // we only set a subset here so invalidate first
+    initialTexParams.invalidate();
+    initialTexParams.fMinFilter = GR_GL_NEAREST;
+    initialTexParams.fMagFilter = GR_GL_NEAREST;
+    initialTexParams.fWrapS = GR_GL_CLAMP_TO_EDGE;
+    initialTexParams.fWrapT = GR_GL_CLAMP_TO_EDGE;
+    GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
+                          GR_GL_TEXTURE_MAG_FILTER,
+                          initialTexParams.fMagFilter));
+    GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
+                          GR_GL_TEXTURE_MIN_FILTER,
+                          initialTexParams.fMinFilter));
+    GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
+                          GR_GL_TEXTURE_WRAP_S,
+                          initialTexParams.fWrapS));
+    GL_CALL(TexParameteri(idDesc.fInfo.fTarget,
+                          GR_GL_TEXTURE_WRAP_T,
+                          initialTexParams.fWrapT));
+    if (!this->uploadTexData(desc, idDesc.fInfo.fTarget, kNewTexture_UploadType, 0, 0,
+                             desc.fWidth, desc.fHeight,
+                             desc.fConfig, srcData, rowBytes)) {
+        GL_CALL(DeleteTextures(1, &idDesc.fInfo.fID));
         return return_null_texture();
     }
 
@@ -1441,86 +1473,6 @@
     return this->glCaps().getStencilFormatIndexForConfig(config);
 }
 
-bool GrGLGpu::createTextureImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
-                                bool renderTarget, const void* srcData,
-                                GrGLTexture::TexParams* initialTexParams, size_t rowBytes) {
-    // Some drivers like to know filter/wrap before seeing glTexImage2D. Some
-    // drivers have a bug where an FBO won't be complete if it includes a
-    // texture that is not mipmap complete (considering the filter in use).
-
-    // we only set a subset here so invalidate first
-    initialTexParams->invalidate();
-    initialTexParams->fMinFilter = GR_GL_NEAREST;
-    initialTexParams->fMagFilter = GR_GL_NEAREST;
-    initialTexParams->fWrapS = GR_GL_CLAMP_TO_EDGE;
-    initialTexParams->fWrapT = GR_GL_CLAMP_TO_EDGE;
-
-    if (desc.fTextureStorageAllocator.fAllocateTextureStorage) {
-        return this->createTextureExternalAllocatorImpl(desc, info, srcData, rowBytes);
-    }
-
-    info->fID = 0;
-    info->fTarget = GR_GL_TEXTURE_2D;
-    GL_CALL(GenTextures(1, &(info->fID)));
-
-    if (!info->fID) {
-        return false;
-    }
-
-    this->setScratchTextureUnit();
-    GL_CALL(BindTexture(info->fTarget, info->fID));
-
-    if (renderTarget && this->glCaps().textureUsageSupport()) {
-        // provides a hint about how this texture will be used
-        GL_CALL(TexParameteri(info->fTarget,
-                              GR_GL_TEXTURE_USAGE,
-                              GR_GL_FRAMEBUFFER_ATTACHMENT));
-    }
-
-    GL_CALL(TexParameteri(info->fTarget,
-                          GR_GL_TEXTURE_MAG_FILTER,
-                          initialTexParams->fMagFilter));
-    GL_CALL(TexParameteri(info->fTarget,
-                          GR_GL_TEXTURE_MIN_FILTER,
-                          initialTexParams->fMinFilter));
-    GL_CALL(TexParameteri(info->fTarget,
-                          GR_GL_TEXTURE_WRAP_S,
-                          initialTexParams->fWrapS));
-    GL_CALL(TexParameteri(info->fTarget,
-                          GR_GL_TEXTURE_WRAP_T,
-                          initialTexParams->fWrapT));
-    if (!this->uploadTexData(desc, info->fTarget, kNewTexture_UploadType, 0, 0,
-                             desc.fWidth, desc.fHeight,
-                             desc.fConfig, srcData, rowBytes)) {
-        GL_CALL(DeleteTextures(1, &(info->fID)));
-        return false;
-    }
-    return true;
-}
-
-bool GrGLGpu::createTextureExternalAllocatorImpl(
-        const GrSurfaceDesc& desc, GrGLTextureInfo* info, const void* srcData, size_t rowBytes) {
-    switch (desc.fTextureStorageAllocator.fAllocateTextureStorage(
-                    desc.fTextureStorageAllocator.fCtx, reinterpret_cast<GrBackendObject>(info),
-                    desc.fWidth, desc.fHeight, desc.fConfig, srcData, desc.fOrigin)) {
-        case GrTextureStorageAllocator::Result::kSucceededAndUploaded:
-            return true;
-        case GrTextureStorageAllocator::Result::kFailed:
-            return false;
-        case GrTextureStorageAllocator::Result::kSucceededWithoutUpload:
-            break;
-    }
-
-    if (!this->uploadTexData(desc, info->fTarget, kNewTexture_UploadType, 0, 0,
-                             desc.fWidth, desc.fHeight,
-                             desc.fConfig, srcData, rowBytes)) {
-        desc.fTextureStorageAllocator.fDeallocateTextureStorage(
-                desc.fTextureStorageAllocator.fCtx, reinterpret_cast<GrBackendObject>(info));
-        return false;
-    }
-    return true;
-}
-
 GrStencilAttachment* GrGLGpu::createStencilAttachmentForRenderTarget(const GrRenderTarget* rt,
                                                                      int width,
                                                                      int height) {
diff --git a/src/gpu/gl/GrGLGpu.h b/src/gpu/gl/GrGLGpu.h
index ce2f95e..ec93bbf 100644
--- a/src/gpu/gl/GrGLGpu.h
+++ b/src/gpu/gl/GrGLGpu.h
@@ -159,18 +159,6 @@
     // compatible stencil format, or negative if there is no compatible stencil format.
     int getCompatibleStencilIndex(GrPixelConfig config);
 
-    // If |desc.fTextureStorageAllocator| exists, use that to create the
-    // texture. Otherwise, create the texture directly.
-    // Returns whether the texture is successfully created. On success, the
-    // result is stored in |info|.
-    // The texture is populated with |srcData|, if it exists.
-    // The texture parameters are cached in |initialTexParams|.
-    bool createTextureImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
-                           bool renderTarget, const void* srcData,
-                           GrGLTexture::TexParams* initialTexParams, size_t rowBytes);
-    bool createTextureExternalAllocatorImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
-                                            const void* srcData, size_t rowBytes);
-
     void onClear(GrRenderTarget*, const SkIRect& rect, GrColor color) override;
 
     void onClearStencilClip(GrRenderTarget*, const SkIRect& rect, bool insideClip) override;
diff --git a/src/gpu/gl/GrGLTexture.cpp b/src/gpu/gl/GrGLTexture.cpp
index 864547a..39a8d92 100644
--- a/src/gpu/gl/GrGLTexture.cpp
+++ b/src/gpu/gl/GrGLTexture.cpp
@@ -37,13 +37,7 @@
 void GrGLTexture::onRelease() {
     if (fInfo.fID) {
         if (GrGpuResource::kBorrowed_LifeCycle != fTextureIDLifecycle) {
-            if (this->desc().fTextureStorageAllocator.fDeallocateTextureStorage) {
-                this->desc().fTextureStorageAllocator.fDeallocateTextureStorage(
-                        this->desc().fTextureStorageAllocator.fCtx,
-                        reinterpret_cast<GrBackendObject>(&fInfo));
-            } else {
-                GL_CALL(DeleteTextures(1, &fInfo.fID));
-            }
+            GL_CALL(DeleteTextures(1, &fInfo.fID));
         }
         fInfo.fID = 0;
     }
diff --git a/src/image/SkSurface.cpp b/src/image/SkSurface.cpp
index fed13a2..0315f6c 100644
--- a/src/image/SkSurface.cpp
+++ b/src/image/SkSurface.cpp
@@ -204,7 +204,7 @@
 }
 
 SkSurface* SkSurface::NewRenderTarget(GrContext*, Budgeted, const SkImageInfo&, int,
-                                      const SkSurfaceProps*, GrTextureStorageAllocator) {
+                                      const SkSurfaceProps*) {
     return nullptr;
 }
 
diff --git a/src/image/SkSurface_Gpu.cpp b/src/image/SkSurface_Gpu.cpp
index f7a31c0..2d5645b 100644
--- a/src/image/SkSurface_Gpu.cpp
+++ b/src/image/SkSurface_Gpu.cpp
@@ -121,11 +121,9 @@
 }
 
 SkSurface* SkSurface::NewRenderTarget(GrContext* ctx, Budgeted budgeted, const SkImageInfo& info,
-                                      int sampleCount, const SkSurfaceProps* props,
-                                      GrTextureStorageAllocator customAllocator) {
-    SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(
-            ctx, budgeted, info, sampleCount, props, SkGpuDevice::kClear_InitContents,
-            customAllocator));
+                                      int sampleCount, const SkSurfaceProps* props) {
+    SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(ctx, budgeted, info, sampleCount, props,
+                                                         SkGpuDevice::kClear_InitContents));
     if (!device) {
         return nullptr;
     }