Clean up usage of SkSurfaceProps

This CL continues cleaning up Skia's usage of SkSurfaceProps. It:

  Removes the duplicate SkSurfaceProps object from SkImageFilter::Proxy.

  Removes a dispreferred ctor from SkCanvas

  Removes the initForRootLayer entry point from SkDevice (since the root device and the canvas should always have the same pixel geometry now).

Review URL: https://codereview.chromium.org/1201983006
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index f35727d..fcfb641 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -536,8 +536,8 @@
     fSurfaceBase = NULL;
 
     if (device) {
-        // TODO: remove this - the root device & canvas should always have same surfaceProps
-        device->initForRootLayer(fProps.pixelGeometry());
+        // The root device and the canvas should always have the same pixel geometry
+        SkASSERT(fProps.pixelGeometry() == device->surfaceProps().pixelGeometry());
         if (device->forceConservativeRasterClip()) {
             fConservativeRasterClip = true;
         }
@@ -595,16 +595,6 @@
     this->init(SkNEW_ARGS(SkNoPixelsBitmapDevice, (bounds, fProps)), flags)->unref();
 }
 
-// TODO: remove this ctor
-SkCanvas::SkCanvas(SkBaseDevice* device, const SkSurfaceProps* props, InitFlags flags)
-    : fMCStack(sizeof(MCRec), fMCRecStorage, sizeof(fMCRecStorage))
-    , fProps(SkSurfacePropsCopyOrDefault(props))
-{
-    inc_canvas();
-
-    this->init(device, flags);
-}
-
 SkCanvas::SkCanvas(SkBaseDevice* device)
     : fMCStack(sizeof(MCRec), fMCRecStorage, sizeof(fMCRecStorage))
     , fProps(device->surfaceProps())
@@ -1256,7 +1246,7 @@
         SkImageFilter* filter = paint->getImageFilter();
         SkIPoint pos = { x - iter.getX(), y - iter.getY() };
         if (filter && !dstDev->canHandleImageFilter(filter)) {
-            SkImageFilter::Proxy proxy(dstDev, fProps);
+            SkImageFilter::Proxy proxy(dstDev);
             SkBitmap dst;
             SkIPoint offset = SkIPoint::Make(0, 0);
             const SkBitmap& src = srcDev->accessBitmap(false);
@@ -1308,7 +1298,7 @@
         SkImageFilter* filter = paint->getImageFilter();
         SkIPoint pos = { x - iter.getX(), y - iter.getY() };
         if (filter && !iter.fDevice->canHandleImageFilter(filter)) {
-            SkImageFilter::Proxy proxy(iter.fDevice, fProps);
+            SkImageFilter::Proxy proxy(iter.fDevice);
             SkBitmap dst;
             SkIPoint offset = SkIPoint::Make(0, 0);
             SkMatrix matrix = *iter.fMatrix;
diff --git a/src/core/SkDevice.cpp b/src/core/SkDevice.cpp
index 4e9d4a2..15cd7ee 100644
--- a/src/core/SkDevice.cpp
+++ b/src/core/SkDevice.cpp
@@ -70,15 +70,6 @@
     return geo;
 }
 
-void SkBaseDevice::initForRootLayer(SkPixelGeometry geo) {
-    // For now we don't expect to change the geometry for the root-layer, but we make the call
-    // anyway to document logically what is going on.
-    //
-    fSurfaceProps.setPixelGeometry_dont_use(CreateInfo::AdjustGeometry(this->imageInfo(),
-                                                                       kPossible_TileUsage,
-                                                                       geo));
-}
-
 void SkBaseDevice::drawDRRect(const SkDraw& draw, const SkRRect& outer,
                               const SkRRect& inner, const SkPaint& paint) {
     SkPath path;
diff --git a/src/effects/SkPictureImageFilter.cpp b/src/effects/SkPictureImageFilter.cpp
index 91f4dc9..bf1ba8d 100644
--- a/src/effects/SkPictureImageFilter.cpp
+++ b/src/effects/SkPictureImageFilter.cpp
@@ -110,9 +110,9 @@
 
     if (kDeviceSpace_PictureResolution == fPictureResolution || 
         0 == (ctx.ctm().getType() & ~SkMatrix::kTranslate_Mask)) {
-        drawPictureAtDeviceResolution(proxy, device.get(), bounds, ctx);        
+        this->drawPictureAtDeviceResolution(device.get(), bounds, ctx);        
     } else {
-        drawPictureAtLocalResolution(proxy, device.get(), bounds, ctx);
+        this->drawPictureAtLocalResolution(proxy, device.get(), bounds, ctx);
     }
 
     *result = device.get()->accessBitmap(false);
@@ -121,13 +121,10 @@
     return true;
 }
 
-void SkPictureImageFilter::drawPictureAtDeviceResolution(Proxy* proxy, SkBaseDevice* device,
+void SkPictureImageFilter::drawPictureAtDeviceResolution(SkBaseDevice* device,
                                                          const SkIRect& deviceBounds,
                                                          const Context& ctx) const {
-    // Pass explicit surface props, as the simplified canvas constructor discards device properties.
-    // FIXME: switch back to the public constructor (and unfriend) after
-    //        https://code.google.com/p/skia/issues/detail?id=3142 is fixed.
-    SkCanvas canvas(device, &proxy->surfaceProps(), SkCanvas::kDefault_InitFlags);
+    SkCanvas canvas(device);
 
     canvas.translate(-SkIntToScalar(deviceBounds.fLeft), -SkIntToScalar(deviceBounds.fTop));
     canvas.concat(ctx.ctm());
@@ -138,26 +135,23 @@
                                                         const SkIRect& deviceBounds,
                                                         const Context& ctx) const {
     SkMatrix inverseCtm;
-    if (!ctx.ctm().invert(&inverseCtm))
+    if (!ctx.ctm().invert(&inverseCtm)) {
         return;
+    }
+
     SkRect localBounds = SkRect::Make(ctx.clipBounds());
     inverseCtm.mapRect(&localBounds);
-    if (!localBounds.intersect(fCropRect))
+    if (!localBounds.intersect(fCropRect)) {
         return;
+    }
     SkIRect localIBounds = localBounds.roundOut();
     SkAutoTUnref<SkBaseDevice> localDevice(proxy->createDevice(localIBounds.width(), localIBounds.height()));
 
-    // Pass explicit surface props, as the simplified canvas constructor discards device properties.
-    // FIXME: switch back to the public constructor (and unfriend) after
-    //        https://code.google.com/p/skia/issues/detail?id=3142 is fixed.
-    SkCanvas localCanvas(localDevice, &proxy->surfaceProps(), SkCanvas::kDefault_InitFlags);
+    SkCanvas localCanvas(localDevice);
     localCanvas.translate(-SkIntToScalar(localIBounds.fLeft), -SkIntToScalar(localIBounds.fTop));
     localCanvas.drawPicture(fPicture);
 
-    // Pass explicit surface props, as the simplified canvas constructor discards device properties.
-    // FIXME: switch back to the public constructor (and unfriend) after
-    //        https://code.google.com/p/skia/issues/detail?id=3142 is fixed.
-    SkCanvas canvas(device, &proxy->surfaceProps(), SkCanvas::kDefault_InitFlags);
+    SkCanvas canvas(device);
 
     canvas.translate(-SkIntToScalar(deviceBounds.fLeft), -SkIntToScalar(deviceBounds.fTop));
     canvas.concat(ctx.ctm());
@@ -165,7 +159,6 @@
     paint.setFilterQuality(fFilterQuality);
     canvas.drawBitmap(localDevice.get()->accessBitmap(false), SkIntToScalar(localIBounds.fLeft),
                       SkIntToScalar(localIBounds.fTop), &paint);
-    //canvas.drawPicture(fPicture);
 }
 
 #ifndef SK_IGNORE_TO_STRING
diff --git a/src/gpu/GrLayerHoister.cpp b/src/gpu/GrLayerHoister.cpp
index 7693328..1f01e1a 100644
--- a/src/gpu/GrLayerHoister.cpp
+++ b/src/gpu/GrLayerHoister.cpp
@@ -313,7 +313,7 @@
     SkAutoTUnref<SkImageFilter::Cache> cache(SkImageFilter::Cache::Create(kDefaultCacheSize));
     SkImageFilter::Context filterContext(totMat, clipBounds, cache);
 
-    SkImageFilter::Proxy proxy(device, SkSurfaceProps(0, kUnknown_SkPixelGeometry));
+    SkImageFilter::Proxy proxy(device);
     const SkBitmap src = wrap_texture(layer->texture());
 
     if (!layer->filter()->filterImage(&proxy, src, filterContext, &filteredBitmap, &offset)) {
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index a67b2c2..1603cd6 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -1229,9 +1229,7 @@
                                 SkBitmap* result, SkIPoint* offset) {
     SkASSERT(filter);
 
-    // FIXME: plumb actual surface props such that we don't have to lie about the flags here
-    //        (https://code.google.com/p/skia/issues/detail?id=3148).
-    SkImageFilter::Proxy proxy(this, SkSurfaceProps(0, this->surfaceProps().pixelGeometry()));
+    SkImageFilter::Proxy proxy(this);
 
     if (filter->canFilterImageGPU()) {
         return filter->filterImageGPU(&proxy, wrap_texture(texture, width, height),
diff --git a/src/utils/SkDeferredCanvas.cpp b/src/utils/SkDeferredCanvas.cpp
index dd22cf95..5b6a068 100644
--- a/src/utils/SkDeferredCanvas.cpp
+++ b/src/utils/SkDeferredCanvas.cpp
@@ -491,7 +491,7 @@
     // will not be used with a deferred canvas (there is no API for that).
     // And connecting a SkDeferredDevice to non-deferred canvas can result
     // in unpredictable behavior.
-    return immediateDevice()->onCreateDevice(cinfo, layerPaint);
+    return this->immediateDevice()->onCreateDevice(cinfo, layerPaint);
 }
 
 SkSurface* SkDeferredDevice::newSurface(const SkImageInfo& info, const SkSurfaceProps& props) {