[NOT FOR COMMIT] Fully replace SkCanvas uses.

ui/gfx/blit.cc

Index: ui/gfx/blit.cc
diff --git a/ui/gfx/blit.cc b/ui/gfx/blit.cc
index 169eae25aafed3e92e67fe0956d4b61c724e1569..f18f95eea1d2f94b7706df85a2b750e96ab5bda2 100644
--- a/ui/gfx/blit.cc
+++ b/ui/gfx/blit.cc
@@ -38,7 +38,7 @@ namespace {
 
 // Returns true if the given canvas has any part of itself clipped out or
 // any non-identity tranform.
-bool HasClipOrTransform(SkCanvas& canvas) {
+bool HasClipOrTransform(CdlCanvas& canvas) {
   if (!canvas.getTotalMatrix().isIdentity())
     return true;
 
@@ -52,7 +52,7 @@ bool HasClipOrTransform(SkCanvas& canvas) {
 
   SkImageInfo info;
   size_t row_bytes;
-  void* pixels = canvas.accessTopLayerPixels(&info, &row_bytes);
+  void* pixels = GetSkCanvas(&canvas)->accessTopLayerPixels(&info, &row_bytes);
   DCHECK(pixels);
   if (!pixels)
     return true;
@@ -67,7 +67,7 @@ bool HasClipOrTransform(SkCanvas& canvas) {
 
 }  // namespace
 
-void ScrollCanvas(SkCanvas* canvas,
+void ScrollCanvas(CdlCanvas* canvas,
                   const gfx::Rect& in_clip,
                   const gfx::Vector2d& offset) {
   DCHECK(!HasClipOrTransform(*canvas));  // Don't support special stuff.