Pass flipY and premultiplyAlpha params to command buffer through func args.

public/platform/WebGraphicsContext3D.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 379 matching lines @@
     virtual void beginQueryEXT(WGC3Denum target, WebGLId query) { }
     virtual void endQueryEXT(WGC3Denum target) { }
     virtual void getQueryivEXT(WGC3Denum target, WGC3Denum pname, WGC3Dint* params) { }
     virtual void getQueryObjectuivEXT(WebGLId query, WGC3Denum pname, WGC3Duint* params) { }
 
     // GL_CHROMIUM_bind_uniform_location
     virtual void bindUniformLocationCHROMIUM(WebGLId program, WGC3Dint location, const WGC3Dchar* uniform) { }
 
     // GL_CHROMIUM_copy_texture
     virtual void copyTextureCHROMIUM(WGC3Denum target, WGC3Duint sourceId,
-        WGC3Duint destId, WGC3Denum internalFormat, WGC3Denum destType) { }
+        WGC3Duint destId, WGC3Denum internalFormat, WGC3Denum destType,
+        WGC3Dboolean unpackFlipY, WGC3Dboolean unpackPremultiplyAlpha, WGC3Dboolean unpackUnmultiplyAlpha) { }
     virtual void copySubTextureCHROMIUM(WGC3Denum target, WGC3Duint sourceId,
         WGC3Duint destId, WGC3Dint xoffset, WGC3Dint yoffset, WGC3Dint x,
-        WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height) { }
+        WGC3Dint y, WGC3Dsizei width, WGC3Dsizei height,
+        WGC3Dboolean unpackFlipY, WGC3Dboolean unpackPremultiplyAlpha, WGC3Dboolean unpackUnmultiplyAlpha) { }
 
     // GL_CHROMIUM_shallow_flush
     virtual void shallowFlushCHROMIUM() { }
     virtual void shallowFinishCHROMIUM() { }
 
     // GL_CHROMIUM_subscribe_uniform
     virtual void genValuebuffersCHROMIUM(WGC3Dsizei count, WebGLId* ids) { }
     virtual WebGLId createValuebufferCHROMIUM() { return 0; }
     virtual void deleteValuebuffersCHROMIUM(WGC3Dsizei count, WebGLId* ids) { }
     virtual void deleteValuebufferCHROMIUM(WebGLId) { }
@@ skipping 140 matching lines @@
     virtual void vertexAttribI4iv(WGC3Duint index, const WGC3Dint *v) { }
     virtual void vertexAttribI4ui(WGC3Duint index, WGC3Duint x, WGC3Duint y, WGC3Duint z, WGC3Duint w) { }
     virtual void vertexAttribI4uiv(WGC3Duint index, const WGC3Duint *v) { }
     virtual void vertexAttribIPointer(WGC3Duint index, WGC3Dint size, WGC3Denum type, WGC3Dsizei stride, WGC3Dintptr pointer) { }
     virtual void waitSync(WGC3Dsync sync, WGC3Dbitfield flags, WGC3Duint64 timeout) { }
 };
 
 } // namespace blink
 
 #endif