Move simple methods [A-E] from WebGraphicsContext3D to GLES2Interface.

third_party/WebKit/Source/platform/graphics/ImageBuffer.h

Index: third_party/WebKit/Source/platform/graphics/ImageBuffer.h
diff --git a/third_party/WebKit/Source/platform/graphics/ImageBuffer.h b/third_party/WebKit/Source/platform/graphics/ImageBuffer.h
index a794d6c717c1465aafb047f16ba45a202b656392..83039ac13da5a9b95355d4054804581757fb40c7 100644
--- a/third_party/WebKit/Source/platform/graphics/ImageBuffer.h
+++ b/third_party/WebKit/Source/platform/graphics/ImageBuffer.h
@@ -45,6 +45,12 @@
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
+namespace gpu {
+namespace gles2 {
+class GLES2Interface;
+}
+}
+
 namespace WTF {
 
 class ArrayBufferContents;
@@ -118,7 +124,7 @@ public:
     // with textures that are RGB or RGBA format, UNSIGNED_BYTE type and level 0, as specified in
     // Extensions3D::canUseCopyTextureCHROMIUM().
     // Destroys the TEXTURE_2D binding for the active texture unit of the passed context
-    bool copyToPlatformTexture(WebGraphicsContext3D*, Platform3DObject, GLenum, GLenum, GLint, bool, bool);
+    bool copyToPlatformTexture(WebGraphicsContext3D*, gpu::gles2::GLES2Interface*, Platform3DObject, GLenum, GLenum, GLint, bool, bool);
 
     bool copyRenderingResultsFromDrawingBuffer(DrawingBuffer*, SourceDrawingBuffer);