Removal of dependencies on PlatformDevice classes.

skia/ext/platform_canvas.cc

Index: skia/ext/platform_canvas.cc
===================================================================
--- skia/ext/platform_canvas.cc	(revision 85945)
+++ skia/ext/platform_canvas.cc	(working copy)
@@ -8,11 +8,12 @@
 #include "third_party/skia/include/core/SkTypes.h"
 
 namespace {
-skia::PlatformDevice* GetTopPlatformDevice(const SkCanvas* canvas) {
-  // All of our devices should be our special PlatformDevice.
+
+SkDevice* GetTopDevice(const SkCanvas* canvas) {
   SkCanvas::LayerIter iter(const_cast<SkCanvas*>(canvas), false);
-  return static_cast<skia::PlatformDevice*>(iter.device());
+  return iter.device();
 }
+
 }
 
 namespace skia {
@@ -29,8 +30,8 @@
   return NULL;
 }
 
-PlatformDevice& PlatformCanvas::getTopPlatformDevice() const {
-  return *GetTopPlatformDevice(this);
+SkDevice& PlatformCanvas::getTopDevice() const {
+  return *GetTopDevice(this);
 }
 
 // static
@@ -52,17 +53,26 @@
 }
 
 bool SupportsPlatformPaint(const SkCanvas* canvas) {
-  // TODO(alokp): Rename PlatformDevice::IsNativeFontRenderingAllowed after
-  // removing these calls from WebKit.
-  return GetTopPlatformDevice(canvas)->IsNativeFontRenderingAllowed();
+  // TODO(alokp): Rename IsNativeFontRenderingAllowed after removing these
+  // calls from WebKit.
+  return IsNativeFontRenderingAllowed(GetTopDevice(canvas));
 }
 
-PlatformDevice::PlatformSurface BeginPlatformPaint(SkCanvas* canvas) {
-  return GetTopPlatformDevice(canvas)->BeginPlatformPaint();
+PlatformSurface BeginPlatformPaint(SkCanvas* canvas) {
+  return BeginPlatformPaint(GetTopDevice(canvas));
 }
 
 void EndPlatformPaint(SkCanvas* canvas) {
-  GetTopPlatformDevice(canvas)->EndPlatformPaint();
+  EndPlatformPaint(GetTopDevice(canvas));
 }
 
+void DrawToNativeContext(SkCanvas* canvas, PlatformSurface context, int x,
+                         int y, const PlatformRect* src_rect) {
+  DrawToNativeContext(GetTopDevice(canvas), context, x, y, src_rect);
+}
+
+void MakeOpaque(SkCanvas* canvas, int x, int y, int width, int height) {
+  MakeOpaque(GetTopDevice(canvas), x, y, width, height);
+}
+
 }  // namespace skia