Remove unused CanvasSkia::GetTextureID() functions.

ui/gfx/canvas.h

 // 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.
 
 #ifndef UI_GFX_CANVAS_H_
 #define UI_GFX_CANVAS_H_
 #pragma once
 
 #include <string>
 
 #include "base/string16.h"
 // TODO(beng): remove these includes when we no longer depend on SkTypes.
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkXfermode.h"
 #include "ui/base/ui_export.h"
 #include "ui/gfx/native_widget_types.h"
 
 class SkCanvas;
 
 namespace ui {
 class Transform;
-typedef unsigned int TextureID;
 }
 
 namespace gfx {
 
 class Brush;
 class CanvasSkia;
 class Font;
 class Point;
 class Rect;
 class Size;
@@ skipping 175 matching lines @@
   // use. Must be balanced by a call to EndPlatformPaint().
   virtual gfx::NativeDrawingContext BeginPlatformPaint() = 0;
 
   // Signifies the end of platform drawing using the native drawing context
   // returned by BeginPlatformPaint().
   virtual void EndPlatformPaint() = 0;
 
   // Apply transformation on the canvas.
   virtual void Transform(const ui::Transform& transform) = 0;
 
-  // Create a texture ID that can be used for accelerated drawing.
-  virtual ui::TextureID GetTextureID() = 0;
-
   // TODO(beng): remove this once we don't need to use any skia-specific methods
   //             through this interface.
   // A quick and dirty way to obtain the underlying SkCanvas.
   virtual CanvasSkia* AsCanvasSkia();
   virtual const CanvasSkia* AsCanvasSkia() const;
   virtual SkCanvas* GetSkCanvas();
   virtual const SkCanvas* GetSkCanvas() const;
 };
 
 class UI_EXPORT CanvasPaint {
@@ skipping 10 matching lines @@
   // Returns the rectangle that is invalid.
   virtual gfx::Rect GetInvalidRect() const = 0;
 
   // Returns the underlying Canvas.
   virtual Canvas* AsCanvas() = 0;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_CANVAS_H_