gpu: Add CHROMIUM_copy_image extension.

gpu/command_buffer/client/gles2_interface_autogen.h

Index: gpu/command_buffer/client/gles2_interface_autogen.h
diff --git a/gpu/command_buffer/client/gles2_interface_autogen.h b/gpu/command_buffer/client/gles2_interface_autogen.h
index c2eb4c6b41ae4e6fa926632d036fd113af0c08a0..f04f074d99e421fd0ed9d70f4cda00dd9e4d1945 100644
--- a/gpu/command_buffer/client/gles2_interface_autogen.h
+++ b/gpu/command_buffer/client/gles2_interface_autogen.h
@@ -735,6 +735,16 @@ virtual void BindTexImage2DCHROMIUM(GLenum target,
                                     GLint imageId,
                                     GLint fenceId) = 0;
 virtual void ReleaseTexImage2DCHROMIUM(GLenum target, GLint imageId) = 0;
+virtual void CopyImageSubDataCHROMIUM(GLint source_image_id,
+                                      GLint dest_texture_id,
+                                      GLint xoffset,
+                                      GLint yoffset,
+                                      GLint x,
+                                      GLint y,
+                                      GLsizei width,
+                                      GLsizei height,
+                                      GLint in_fence_id,
+                                      GLint out_fence_id) = 0;
 virtual void TraceBeginCHROMIUM(const char* category_name,
                                 const char* trace_name) = 0;
 virtual void TraceEndCHROMIUM() = 0;