ui/gfx: Make gfx::Canvas inherit from gfx::CanvasSkia.

ui/gfx/canvas_skia.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/canvas_skia.h"
 
 #include <limits>
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
 #include "ui/gfx/brush.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/rect.h"
+#include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/gfx/transform.h"
 
 #if defined(OS_WIN)
 #include "ui/gfx/canvas_skia_paint.h"
 #endif
 
 namespace {
 
 // A platform wrapper for a Skia shader that makes sure the underlying
@@ skipping 52 matching lines @@
 
 // static
 int CanvasSkia::GetStringWidth(const string16& text, const gfx::Font& font) {
   int width = 0, height = 0;
   CanvasSkia::SizeStringInt(text, font, &width, &height, Canvas::NO_ELLIPSIS);
   return width;
 }
 
 // static
 int CanvasSkia::DefaultCanvasTextAlignment() {
-  if (!base::i18n::IsRTL())
-    return gfx::Canvas::TEXT_ALIGN_LEFT;
-  return gfx::Canvas::TEXT_ALIGN_RIGHT;
+  return base::i18n::IsRTL() ? Canvas::TEXT_ALIGN_RIGHT
+                             : Canvas::TEXT_ALIGN_LEFT;
 }
 
 SkBitmap CanvasSkia::ExtractBitmap() const {
   const SkBitmap& device_bitmap = canvas_->getDevice()->accessBitmap(false);
 
   // Make a bitmap to return, and a canvas to draw into it. We don't just want
   // to call extractSubset or the copy constructor, since we want an actual copy
   // of the bitmap.
   SkBitmap result;
   device_bitmap.copyTo(&result, SkBitmap::kARGB_8888_Config);
@@ skipping 282 matching lines @@
 // CanvasSkia, private:
 
 bool CanvasSkia::IntersectsClipRectInt(int x, int y, int w, int h) {
   SkRect clip;
   return canvas_->getClipBounds(&clip) &&
       clip.intersect(SkIntToScalar(x), SkIntToScalar(y), SkIntToScalar(x + w),
                      SkIntToScalar(y + h));
 }
 
 }  // namespace gfx