Move gpu client files to content_common, in content/common/gpu/client

content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h

Index: content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h
diff --git a/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h b/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h
deleted file mode 100644
index 778c2ce2ad7f3eeeaffd50c728fc5403ba874598..0000000000000000000000000000000000000000
--- a/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h
+++ /dev/null
@@ -1,533 +0,0 @@
-// 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 CONTENT_RENDERER_GPU_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
-#define CONTENT_RENDERER_GPU_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
-#pragma once
-
-#include <string>
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "content/renderer/gpu/renderer_gl_context.h"
-#include "googleurl/src/gurl.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebGraphicsContext3D.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
-#include "ui/gfx/gl/gpu_preference.h"
-#include "ui/gfx/native_widget_types.h"
-
-#if defined(USE_SKIA)
-#define FLIP_FRAMEBUFFER_VERTICALLY
-#endif
-
-class GpuChannelHost;
-
-namespace gpu {
-namespace gles2 {
-class GLES2Implementation;
-}
-}
-
-using WebKit::WebGLId;
-
-using WebKit::WGC3Dchar;
-using WebKit::WGC3Denum;
-using WebKit::WGC3Dboolean;
-using WebKit::WGC3Dbitfield;
-using WebKit::WGC3Dint;
-using WebKit::WGC3Dsizei;
-using WebKit::WGC3Duint;
-using WebKit::WGC3Dfloat;
-using WebKit::WGC3Dclampf;
-using WebKit::WGC3Dintptr;
-using WebKit::WGC3Dsizeiptr;
-
-// TODO(piman): move this logic to the compositor and remove it from the
-// context...
-class WebGraphicsContext3DSwapBuffersClient {
- public:
-  virtual ~WebGraphicsContext3DSwapBuffersClient() { }
-  virtual void OnViewContextSwapBuffersPosted() = 0;
-  virtual void OnViewContextSwapBuffersComplete() = 0;
-  virtual void OnViewContextSwapBuffersAborted() = 0;
-};
-
-class WebGraphicsContext3DCommandBufferImpl
-    : public WebKit::WebGraphicsContext3D {
- public:
-  WebGraphicsContext3DCommandBufferImpl(
-      int surface_id,
-      const GURL& active_url,
-      const base::WeakPtr<WebGraphicsContext3DSwapBuffersClient>& swap_client);
-  virtual ~WebGraphicsContext3DCommandBufferImpl();
-
-  bool Initialize(const Attributes& attributes);
-
-  //----------------------------------------------------------------------
-  // WebGraphicsContext3D methods
-
-  // Must be called after initialize() and before any of the following methods.
-  // Permanently binds to the first calling thread. Returns false if the
-  // graphics context fails to create. Do not call from more than one thread.
-  virtual bool makeContextCurrent();
-
-  virtual int width();
-  virtual int height();
-
-  virtual bool isGLES2Compliant();
-
-  virtual bool setParentContext(WebGraphicsContext3D* parent_context);
-
-  virtual void reshape(int width, int height);
-
-  virtual bool readBackFramebuffer(unsigned char* pixels, size_t buffer_size);
-  virtual bool readBackFramebuffer(unsigned char* pixels, size_t buffer_size,
-                                   WebGLId framebuffer, int width, int height);
-
-  virtual WebGLId getPlatformTextureId();
-  virtual void prepareTexture();
-  virtual void postSubBufferCHROMIUM(int x, int y, int width, int height);
-
-  virtual void activeTexture(WGC3Denum texture);
-  virtual void attachShader(WebGLId program, WebGLId shader);
-  virtual void bindAttribLocation(WebGLId program, WGC3Duint index,
-                                  const WGC3Dchar* name);
-  virtual void bindBuffer(WGC3Denum target, WebGLId buffer);
-  virtual void bindFramebuffer(WGC3Denum target, WebGLId framebuffer);
-  virtual void bindRenderbuffer(WGC3Denum target, WebGLId renderbuffer);
-  virtual void bindTexture(WGC3Denum target, WebGLId texture);
-  virtual void blendColor(WGC3Dclampf red, WGC3Dclampf green,
-                          WGC3Dclampf blue, WGC3Dclampf alpha);
-  virtual void blendEquation(WGC3Denum mode);
-  virtual void blendEquationSeparate(WGC3Denum modeRGB,
-                                     WGC3Denum modeAlpha);
-  virtual void blendFunc(WGC3Denum sfactor, WGC3Denum dfactor);
-  virtual void blendFuncSeparate(WGC3Denum srcRGB,
-                                 WGC3Denum dstRGB,
-                                 WGC3Denum srcAlpha,
-                                 WGC3Denum dstAlpha);
-
-  virtual void bufferData(WGC3Denum target, WGC3Dsizeiptr size,
-                          const void* data, WGC3Denum usage);
-  virtual void bufferSubData(WGC3Denum target, WGC3Dintptr offset,
-                             WGC3Dsizeiptr size, const void* data);
-
-  virtual WGC3Denum checkFramebufferStatus(WGC3Denum target);
-  virtual void clear(WGC3Dbitfield mask);
-  virtual void clearColor(WGC3Dclampf red, WGC3Dclampf green,
-                          WGC3Dclampf blue, WGC3Dclampf alpha);
-  virtual void clearDepth(WGC3Dclampf depth);
-  virtual void clearStencil(WGC3Dint s);
-  virtual void colorMask(WGC3Dboolean red, WGC3Dboolean green,
-                         WGC3Dboolean blue, WGC3Dboolean alpha);
-  virtual void compileShader(WebGLId shader);
-
-  virtual void compressedTexImage2D(WGC3Denum target,
-                                    WGC3Dint level,
-                                    WGC3Denum internalformat,
-                                    WGC3Dsizei width,
-                                    WGC3Dsizei height,
-                                    WGC3Dint border,
-                                    WGC3Dsizei imageSize,
-                                    const void* data);
-  virtual void compressedTexSubImage2D(WGC3Denum target,
-                                       WGC3Dint level,
-                                       WGC3Dint xoffset,
-                                       WGC3Dint yoffset,
-                                       WGC3Dsizei width,
-                                       WGC3Dsizei height,
-                                       WGC3Denum format,
-                                       WGC3Dsizei imageSize,
-                                       const void* data);
-  virtual void copyTexImage2D(WGC3Denum target,
-                              WGC3Dint level,
-                              WGC3Denum internalformat,
-                              WGC3Dint x,
-                              WGC3Dint y,
-                              WGC3Dsizei width,
-                              WGC3Dsizei height,
-                              WGC3Dint border);
-  virtual void copyTexSubImage2D(WGC3Denum target,
-                                 WGC3Dint level,
-                                 WGC3Dint xoffset,
-                                 WGC3Dint yoffset,
-                                 WGC3Dint x,
-                                 WGC3Dint y,
-                                 WGC3Dsizei width,
-                                 WGC3Dsizei height);
-  virtual void cullFace(WGC3Denum mode);
-  virtual void depthFunc(WGC3Denum func);
-  virtual void depthMask(WGC3Dboolean flag);
-  virtual void depthRange(WGC3Dclampf zNear, WGC3Dclampf zFar);
-  virtual void detachShader(WebGLId program, WebGLId shader);
-  virtual void disable(WGC3Denum cap);
-  virtual void disableVertexAttribArray(WGC3Duint index);
-  virtual void drawArrays(WGC3Denum mode, WGC3Dint first, WGC3Dsizei count);
-  virtual void drawElements(WGC3Denum mode,
-                            WGC3Dsizei count,
-                            WGC3Denum type,
-                            WGC3Dintptr offset);
-
-  virtual void enable(WGC3Denum cap);
-  virtual void enableVertexAttribArray(WGC3Duint index);
-  virtual void finish();
-  virtual void flush();
-  virtual void framebufferRenderbuffer(WGC3Denum target,
-                                       WGC3Denum attachment,
-                                       WGC3Denum renderbuffertarget,
-                                       WebGLId renderbuffer);
-  virtual void framebufferTexture2D(WGC3Denum target,
-                                    WGC3Denum attachment,
-                                    WGC3Denum textarget,
-                                    WebGLId texture,
-                                    WGC3Dint level);
-  virtual void frontFace(WGC3Denum mode);
-  virtual void generateMipmap(WGC3Denum target);
-
-  virtual bool getActiveAttrib(WebGLId program,
-                               WGC3Duint index,
-                               ActiveInfo&);
-  virtual bool getActiveUniform(WebGLId program,
-                                WGC3Duint index,
-                                ActiveInfo&);
-
-  virtual void getAttachedShaders(WebGLId program,
-                                  WGC3Dsizei maxCount,
-                                  WGC3Dsizei* count,
-                                  WebGLId* shaders);
-
-  virtual WGC3Dint  getAttribLocation(WebGLId program, const WGC3Dchar* name);
-
-  virtual void getBooleanv(WGC3Denum pname, WGC3Dboolean* value);
-
-  virtual void getBufferParameteriv(WGC3Denum target,
-                                    WGC3Denum pname,
-                                    WGC3Dint* value);
-
-  virtual Attributes getContextAttributes();
-
-  virtual WGC3Denum getError();
-
-  virtual bool isContextLost();
-
-  virtual void getFloatv(WGC3Denum pname, WGC3Dfloat* value);
-
-  virtual void getFramebufferAttachmentParameteriv(WGC3Denum target,
-                                                   WGC3Denum attachment,
-                                                   WGC3Denum pname,
-                                                   WGC3Dint* value);
-
-  virtual void getIntegerv(WGC3Denum pname, WGC3Dint* value);
-
-  virtual void getProgramiv(WebGLId program, WGC3Denum pname, WGC3Dint* value);
-
-  virtual WebKit::WebString getProgramInfoLog(WebGLId program);
-
-  virtual void getRenderbufferParameteriv(WGC3Denum target,
-                                          WGC3Denum pname,
-                                          WGC3Dint* value);
-
-  virtual void getShaderiv(WebGLId shader, WGC3Denum pname, WGC3Dint* value);
-
-  virtual WebKit::WebString getShaderInfoLog(WebGLId shader);
-
-  // TBD
-  // void glGetShaderPrecisionFormat (GLenum shadertype,
-  //                                  GLenum precisiontype,
-  //                                  GLint* range,
-  //                                  GLint* precision);
-
-  virtual WebKit::WebString getShaderSource(WebGLId shader);
-  virtual WebKit::WebString getString(WGC3Denum name);
-
-  virtual void getTexParameterfv(WGC3Denum target,
-                                 WGC3Denum pname,
-                                 WGC3Dfloat* value);
-  virtual void getTexParameteriv(WGC3Denum target,
-                                 WGC3Denum pname,
-                                 WGC3Dint* value);
-
-  virtual void getUniformfv(WebGLId program,
-                            WGC3Dint location,
-                            WGC3Dfloat* value);
-  virtual void getUniformiv(WebGLId program,
-                            WGC3Dint location,
-                            WGC3Dint* value);
-
-  virtual WGC3Dint getUniformLocation(WebGLId program, const WGC3Dchar* name);
-
-  virtual void getVertexAttribfv(WGC3Duint index, WGC3Denum pname,
-                                 WGC3Dfloat* value);
-  virtual void getVertexAttribiv(WGC3Duint index, WGC3Denum pname,
-                                 WGC3Dint* value);
-
-  virtual WGC3Dsizeiptr getVertexAttribOffset(WGC3Duint index, WGC3Denum pname);
-
-  virtual void hint(WGC3Denum target, WGC3Denum mode);
-  virtual WGC3Dboolean isBuffer(WebGLId buffer);
-  virtual WGC3Dboolean isEnabled(WGC3Denum cap);
-  virtual WGC3Dboolean isFramebuffer(WebGLId framebuffer);
-  virtual WGC3Dboolean isProgram(WebGLId program);
-  virtual WGC3Dboolean isRenderbuffer(WebGLId renderbuffer);
-  virtual WGC3Dboolean isShader(WebGLId shader);
-  virtual WGC3Dboolean isTexture(WebGLId texture);
-  virtual void lineWidth(WGC3Dfloat);
-  virtual void linkProgram(WebGLId program);
-  virtual void pixelStorei(WGC3Denum pname, WGC3Dint param);
-  virtual void polygonOffset(WGC3Dfloat factor, WGC3Dfloat units);
-
-  virtual void readPixels(WGC3Dint x,
-                          WGC3Dint y,
-                          WGC3Dsizei width,
-                          WGC3Dsizei height,
-                          WGC3Denum format,
-                          WGC3Denum type,
-                          void* pixels);
-
-  virtual void releaseShaderCompiler();
-  virtual void renderbufferStorage(WGC3Denum target,
-                                   WGC3Denum internalformat,
-                                   WGC3Dsizei width,
-                                   WGC3Dsizei height);
-  virtual void sampleCoverage(WGC3Dfloat value, WGC3Dboolean invert);
-  virtual void scissor(WGC3Dint x, WGC3Dint y,
-                       WGC3Dsizei width, WGC3Dsizei height);
-  virtual void shaderSource(WebGLId shader, const WGC3Dchar* string);
-  virtual void stencilFunc(WGC3Denum func, WGC3Dint ref, WGC3Duint mask);
-  virtual void stencilFuncSeparate(WGC3Denum face,
-                                   WGC3Denum func,
-                                   WGC3Dint ref,
-                                   WGC3Duint mask);
-  virtual void stencilMask(WGC3Duint mask);
-  virtual void stencilMaskSeparate(WGC3Denum face, WGC3Duint mask);
-  virtual void stencilOp(WGC3Denum fail,
-                         WGC3Denum zfail,
-                         WGC3Denum zpass);
-  virtual void stencilOpSeparate(WGC3Denum face,
-                                 WGC3Denum fail,
-                                 WGC3Denum zfail,
-                                 WGC3Denum zpass);
-
-  virtual void texImage2D(WGC3Denum target,
-                          WGC3Dint level,
-                          WGC3Denum internalformat,
-                          WGC3Dsizei width,
-                          WGC3Dsizei height,
-                          WGC3Dint border,
-                          WGC3Denum format,
-                          WGC3Denum type,
-                          const void* pixels);
-
-  virtual void texParameterf(WGC3Denum target,
-                             WGC3Denum pname,
-                             WGC3Dfloat param);
-  virtual void texParameteri(WGC3Denum target,
-                             WGC3Denum pname,
-                             WGC3Dint param);
-
-  virtual void texSubImage2D(WGC3Denum target,
-                             WGC3Dint level,
-                             WGC3Dint xoffset,
-                             WGC3Dint yoffset,
-                             WGC3Dsizei width,
-                             WGC3Dsizei height,
-                             WGC3Denum format,
-                             WGC3Denum type,
-                             const void* pixels);
-
-  virtual void uniform1f(WGC3Dint location, WGC3Dfloat x);
-  virtual void uniform1fv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dfloat* v);
-  virtual void uniform1i(WGC3Dint location, WGC3Dint x);
-  virtual void uniform1iv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dint* v);
-  virtual void uniform2f(WGC3Dint location, WGC3Dfloat x, WGC3Dfloat y);
-  virtual void uniform2fv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dfloat* v);
-  virtual void uniform2i(WGC3Dint location, WGC3Dint x, WGC3Dint y);
-  virtual void uniform2iv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dint* v);
-  virtual void uniform3f(WGC3Dint location,
-                         WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z);
-  virtual void uniform3fv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dfloat* v);
-  virtual void uniform3i(WGC3Dint location,
-                         WGC3Dint x, WGC3Dint y, WGC3Dint z);
-  virtual void uniform3iv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dint* v);
-  virtual void uniform4f(WGC3Dint location,
-                         WGC3Dfloat x, WGC3Dfloat y,
-                         WGC3Dfloat z, WGC3Dfloat w);
-  virtual void uniform4fv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dfloat* v);
-  virtual void uniform4i(WGC3Dint location,
-                         WGC3Dint x, WGC3Dint y, WGC3Dint z, WGC3Dint w);
-  virtual void uniform4iv(WGC3Dint location,
-                          WGC3Dsizei count, const WGC3Dint* v);
-  virtual void uniformMatrix2fv(WGC3Dint location,
-                                WGC3Dsizei count,
-                                WGC3Dboolean transpose,
-                                const WGC3Dfloat* value);
-  virtual void uniformMatrix3fv(WGC3Dint location,
-                                WGC3Dsizei count,
-                                WGC3Dboolean transpose,
-                                const WGC3Dfloat* value);
-  virtual void uniformMatrix4fv(WGC3Dint location,
-                                WGC3Dsizei count,
-                                WGC3Dboolean transpose,
-                                const WGC3Dfloat* value);
-
-  virtual void useProgram(WebGLId program);
-  virtual void validateProgram(WebGLId program);
-
-  virtual void vertexAttrib1f(WGC3Duint index, WGC3Dfloat x);
-  virtual void vertexAttrib1fv(WGC3Duint index, const WGC3Dfloat* values);
-  virtual void vertexAttrib2f(WGC3Duint index, WGC3Dfloat x, WGC3Dfloat y);
-  virtual void vertexAttrib2fv(WGC3Duint index, const WGC3Dfloat* values);
-  virtual void vertexAttrib3f(WGC3Duint index,
-                              WGC3Dfloat x, WGC3Dfloat y, WGC3Dfloat z);
-  virtual void vertexAttrib3fv(WGC3Duint index, const WGC3Dfloat* values);
-  virtual void vertexAttrib4f(WGC3Duint index,
-                              WGC3Dfloat x, WGC3Dfloat y,
-                              WGC3Dfloat z, WGC3Dfloat w);
-  virtual void vertexAttrib4fv(WGC3Duint index, const WGC3Dfloat* values);
-  virtual void vertexAttribPointer(WGC3Duint index,
-                                   WGC3Dint size,
-                                   WGC3Denum type,
-                                   WGC3Dboolean normalized,
-                                   WGC3Dsizei stride,
-                                   WGC3Dintptr offset);
-
-  virtual void viewport(WGC3Dint x, WGC3Dint y,
-                        WGC3Dsizei width, WGC3Dsizei height);
-
-  // Support for buffer creation and deletion
-  virtual WebGLId createBuffer();
-  virtual WebGLId createFramebuffer();
-  virtual WebGLId createProgram();
-  virtual WebGLId createRenderbuffer();
-  virtual WebGLId createShader(WGC3Denum);
-  virtual WebGLId createTexture();
-
-  virtual void deleteBuffer(WebGLId);
-  virtual void deleteFramebuffer(WebGLId);
-  virtual void deleteProgram(WebGLId);
-  virtual void deleteRenderbuffer(WebGLId);
-  virtual void deleteShader(WebGLId);
-  virtual void deleteTexture(WebGLId);
-
-  virtual void synthesizeGLError(WGC3Denum);
-
-  virtual void* mapBufferSubDataCHROMIUM(
-      WGC3Denum target, WGC3Dintptr offset,
-      WGC3Dsizeiptr size, WGC3Denum access);
-  virtual void unmapBufferSubDataCHROMIUM(const void*);
-  virtual void* mapTexSubImage2DCHROMIUM(
-      WGC3Denum target,
-      WGC3Dint level,
-      WGC3Dint xoffset,
-      WGC3Dint yoffset,
-      WGC3Dsizei width,
-      WGC3Dsizei height,
-      WGC3Denum format,
-      WGC3Denum type,
-      WGC3Denum access);
-  virtual void unmapTexSubImage2DCHROMIUM(const void*);
-
-  virtual void setVisibilityCHROMIUM(bool visible);
-
-  virtual void copyTextureToParentTextureCHROMIUM(
-      WebGLId texture, WebGLId parentTexture);
-
-  virtual void rateLimitOffscreenContextCHROMIUM();
-
-  virtual WebKit::WebString getRequestableExtensionsCHROMIUM();
-  virtual void requestExtensionCHROMIUM(const char*);
-
-  virtual void blitFramebufferCHROMIUM(
-      WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
-      WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1,
-      WGC3Dbitfield mask, WGC3Denum filter);
-  virtual void renderbufferStorageMultisampleCHROMIUM(
-      WGC3Denum target, WGC3Dsizei samples, WGC3Denum internalformat,
-      WGC3Dsizei width, WGC3Dsizei height);
-
-  virtual WebKit::WebString getTranslatedShaderSourceANGLE(WebGLId shader);
-
-  RendererGLContext* context() { return context_; }
-
-  virtual void setContextLostCallback(
-      WebGraphicsContext3D::WebGraphicsContextLostCallback* callback);
-  virtual WGC3Denum getGraphicsResetStatusARB();
-
-  virtual void setSwapBuffersCompleteCallbackCHROMIUM(
-      WebGraphicsContext3D::
-          WebGraphicsSwapBuffersCompleteCallbackCHROMIUM* callback);
-
-  virtual void texImageIOSurface2DCHROMIUM(
-      WGC3Denum target, WGC3Dint width, WGC3Dint height,
-      WGC3Duint ioSurfaceId, WGC3Duint plane);
-
-  virtual void texStorage2DEXT(
-      WGC3Denum target, WGC3Dint levels, WGC3Duint internalformat,
-      WGC3Dint width, WGC3Dint height);
-
- protected:
-#if WEBKIT_USING_SKIA
-  virtual GrGLInterface* onCreateGrGLInterface();
-#endif
-
- private:
-  // Initialize the underlying GL context. May be called multiple times; second
-  // and subsequent calls are ignored. Must be called from the thread that is
-  // going to use this object to issue GL commands (which might not be the main
-  // thread).
-  bool MaybeInitializeGL();
-
-  // SwapBuffers callback.
-  void OnSwapBuffersComplete();
-  virtual void OnContextLost(RendererGLContext::ContextLostReason reason);
-
-  bool initialize_failed_;
-
-  // The context we use for OpenGL rendering.
-  RendererGLContext* context_;
-  // The GLES2Implementation we use for OpenGL rendering.
-  gpu::gles2::GLES2Implementation* gl_;
-
-  // State needed by MaybeInitializeGL.
-  GpuChannelHost* host_;
-  int32 surface_id_;
-  GURL active_url_;
-  base::WeakPtr<WebGraphicsContext3DSwapBuffersClient> swap_client_;
-
-  WebGraphicsContext3D::WebGraphicsContextLostCallback* context_lost_callback_;
-  WGC3Denum context_lost_reason_;
-
-  WebGraphicsContext3D::WebGraphicsSwapBuffersCompleteCallbackCHROMIUM*
-      swapbuffers_complete_callback_;
-
-  WebKit::WebGraphicsContext3D::Attributes attributes_;
-  gfx::GpuPreference gpu_preference_;
-  int cached_width_, cached_height_;
-
-  // For tracking which FBO is bound.
-  WebGLId bound_fbo_;
-
-  // Errors raised by synthesizeGLError().
-  std::vector<WGC3Denum> synthetic_errors_;
-
-  base::WeakPtrFactory<WebGraphicsContext3DCommandBufferImpl> weak_ptr_factory_;
-
-#ifdef FLIP_FRAMEBUFFER_VERTICALLY
-  scoped_array<uint8> scanline_;
-  void FlipVertically(uint8* framebuffer,
-                      unsigned int width,
-                      unsigned int height);
-#endif
-};
-
-#endif  // CONTENT_RENDERER_GPU_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_