Revert "Reland "Have a GrBackendFormat be stored on gpu proxies.""

This reverts commit 2f9a5ea639925f38785f4d3a0af237822007cfd6.

Reason for revert: breaking fuchsia

Original change's description:
> Reland "Have a GrBackendFormat be stored on gpu proxies."
> 
> This reverts commit 919c9e77c3492af766ff5982acda76ee49da3168.
> 
> Reason for revert: Flutter change has landed and fixed memory issue.
> 
> Original change's description:
> > Revert "Have a GrBackendFormat be stored on gpu proxies."
> >
> > This reverts commit 51b1c12bbc2fa3f8d4faa29ad19c6f3cb34837ce.
> >
> > Reason for revert: reverting till flutter gets to 1.1 to fix build issues.
> >
> > Original change's description:
> > > Have a GrBackendFormat be stored on gpu proxies.
> > >
> > > Bug: skia:
> > > Change-Id: Iaf1fb24ab29a61d44e5fa59a5e0867ed02dcda90
> > > Reviewed-on: https://skia-review.googlesource.com/c/168021
> > > Reviewed-by: Brian Osman <brianosman@google.com>
> > > Commit-Queue: Greg Daniel <egdaniel@google.com>
> >
> > TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com
> >
> > Change-Id: I574fdc084ef5994596c51fb0d60423b5dc01b885
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Bug: chromium:903701 chromium:903756
> > Reviewed-on: https://skia-review.googlesource.com/c/169835
> > Commit-Queue: Greg Daniel <egdaniel@google.com>
> > Reviewed-by: Greg Daniel <egdaniel@google.com>
> 
> TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com
> 
> Change-Id: Ifd9b6b8e194af9fb9258fa626644e76e6ecf090d
> Bug: chromium:903701 chromium:903756
> Reviewed-on: https://skia-review.googlesource.com/c/170104
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

TBR=egdaniel@google.com,bsalomon@google.com,brianosman@google.com

Change-Id: Ia0556355e5775b2100901b7bfa37f97bb6ccd90f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:903701 chromium:903756
Reviewed-on: https://skia-review.googlesource.com/c/171002
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 46c7607..a941b50 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -496,8 +496,7 @@
             fContext->contextPriv().caps()->isConfigTexturable(kRGBA_8888_GrPixelConfig) &&
             fContext->validPMUPMConversionExists();
 
-    const GrCaps* caps = this->caps();
-    if (!caps->surfaceSupportsWritePixels(dstSurface) ||
+    if (!fContext->contextPriv().caps()->surfaceSupportsWritePixels(dstSurface) ||
         canvas2DFastPath) {
         // We don't expect callers that are skipping flushes to require an intermediate draw.
         SkASSERT(!(pixelOpsFlags & kDontFlush_PixelOpsFlag));
@@ -506,25 +505,12 @@
         }
 
         GrSurfaceDesc desc;
+        desc.fConfig = canvas2DFastPath ? kRGBA_8888_GrPixelConfig : dstProxy->config();
         desc.fWidth = width;
         desc.fHeight = height;
         desc.fSampleCnt = 1;
-
-        GrBackendFormat format;
-        if (canvas2DFastPath) {
-            desc.fConfig = kRGBA_8888_GrPixelConfig;
-            format =
-              fContext->contextPriv().caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
-        } else {
-            desc.fConfig =  dstProxy->config();
-            format = dstProxy->backendFormat().makeTexture2D();
-            if (!format.isValid()) {
-                return false;
-            }
-        }
-
         auto tempProxy = this->proxyProvider()->createProxy(
-                format, desc, kTopLeft_GrSurfaceOrigin, SkBackingFit::kApprox, SkBudgeted::kYes);
+                desc, kTopLeft_GrSurfaceOrigin, SkBackingFit::kApprox, SkBudgeted::kYes);
         if (!tempProxy) {
             return false;
         }
@@ -697,23 +683,8 @@
         desc.fWidth = width;
         desc.fHeight = height;
         desc.fSampleCnt = 1;
-
-        GrBackendFormat format;
-        if (canvas2DFastPath) {
-            desc.fFlags = kRenderTarget_GrSurfaceFlag;
-            desc.fConfig = kRGBA_8888_GrPixelConfig;
-            format = this->caps()->getBackendFormatFromColorType(kRGBA_8888_SkColorType);
-        } else {
-            desc.fFlags = kNone_GrSurfaceFlags;
-            desc.fConfig = srcProxy->config();
-            format = srcProxy->backendFormat().makeTexture2D();
-            if (!format.isValid()) {
-                return false;
-            }
-        }
-
         auto tempProxy = this->proxyProvider()->createProxy(
-                format, desc, kTopLeft_GrSurfaceOrigin, SkBackingFit::kApprox, SkBudgeted::kYes);
+                desc, kTopLeft_GrSurfaceOrigin, SkBackingFit::kApprox, SkBudgeted::kYes);
         if (!tempProxy) {
             return false;
         }
@@ -893,8 +864,7 @@
     }
 }
 
-sk_sp<GrSurfaceContext> GrContextPriv::makeDeferredSurfaceContext(const GrBackendFormat& format,
-                                                                  const GrSurfaceDesc& dstDesc,
+sk_sp<GrSurfaceContext> GrContextPriv::makeDeferredSurfaceContext(const GrSurfaceDesc& dstDesc,
                                                                   GrSurfaceOrigin origin,
                                                                   GrMipMapped mipMapped,
                                                                   SkBackingFit fit,
@@ -903,10 +873,10 @@
                                                                   const SkSurfaceProps* props) {
     sk_sp<GrTextureProxy> proxy;
     if (GrMipMapped::kNo == mipMapped) {
-        proxy = this->proxyProvider()->createProxy(format, dstDesc, origin, fit, isDstBudgeted);
+        proxy = this->proxyProvider()->createProxy(dstDesc, origin, fit, isDstBudgeted);
     } else {
         SkASSERT(SkBackingFit::kExact == fit);
-        proxy = this->proxyProvider()->createMipMapProxy(format, dstDesc, origin, isDstBudgeted);
+        proxy = this->proxyProvider()->createMipMapProxy(dstDesc, origin, isDstBudgeted);
     }
     if (!proxy) {
         return nullptr;
@@ -1029,7 +999,6 @@
 }
 
 sk_sp<GrRenderTargetContext> GrContextPriv::makeDeferredRenderTargetContextWithFallback(
-                                                                 const GrBackendFormat& format,
                                                                  SkBackingFit fit,
                                                                  int width, int height,
                                                                  GrPixelConfig config,
@@ -1039,28 +1008,17 @@
                                                                  GrSurfaceOrigin origin,
                                                                  const SkSurfaceProps* surfaceProps,
                                                                  SkBudgeted budgeted) {
-    GrBackendFormat localFormat = format;
     SkASSERT(sampleCnt > 0);
     if (0 == fContext->contextPriv().caps()->getRenderTargetSampleCount(sampleCnt, config)) {
         config = GrPixelConfigFallback(config);
-        // TODO: First we should be checking the getRenderTargetSampleCount from the GrBackendFormat
-        // and not GrPixelConfig. Besides that, we should implement the fallback in the caps, but
-        // for now we just convert the fallback pixel config to an SkColorType and then get the
-        // GrBackendFormat from that.
-        SkColorType colorType;
-        if (!GrPixelConfigToColorType(config, &colorType)) {
-            return nullptr;
-        }
-        localFormat = fContext->fCaps->getBackendFormatFromColorType(colorType);
     }
 
-    return this->makeDeferredRenderTargetContext(localFormat, fit, width, height, config,
-                                                 std::move(colorSpace), sampleCnt, mipMapped,
-                                                 origin, surfaceProps, budgeted);
+    return this->makeDeferredRenderTargetContext(fit, width, height, config, std::move(colorSpace),
+                                                 sampleCnt, mipMapped, origin, surfaceProps,
+                                                 budgeted);
 }
 
 sk_sp<GrRenderTargetContext> GrContextPriv::makeDeferredRenderTargetContext(
-                                                        const GrBackendFormat& format,
                                                         SkBackingFit fit,
                                                         int width, int height,
                                                         GrPixelConfig config,
@@ -1084,9 +1042,9 @@
 
     sk_sp<GrTextureProxy> rtp;
     if (GrMipMapped::kNo == mipMapped) {
-        rtp = fContext->fProxyProvider->createProxy(format, desc, origin, fit, budgeted);
+        rtp = fContext->fProxyProvider->createProxy(desc, origin, fit, budgeted);
     } else {
-        rtp = fContext->fProxyProvider->createMipMapProxy(format, desc, origin, budgeted);
+        rtp = fContext->fProxyProvider->createMipMapProxy(desc, origin, budgeted);
     }
     if (!rtp) {
         return nullptr;