gpu: Add CHROMIUM_copy_image extension.

gpu/command_buffer/client/gles2_implementation_unittest_autogen.h

Index: gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
diff --git a/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h b/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
index 67a7f1b1766822e8d81c5cad7b3e8980e4d08d1e..f88658203af8092819088eb544ab234b2113ed7b 100644
--- a/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
@@ -2789,6 +2789,17 @@ TEST_F(GLES2ImplementationTest, ReleaseTexImage2DCHROMIUM) {
   EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
 }
 
+TEST_F(GLES2ImplementationTest, CopyImageSubDataCHROMIUM) {
+  struct Cmds {
+    cmds::CopyImageSubDataCHROMIUM cmd;
+  };
+  Cmds expected;
+  expected.cmd.Init(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+
+  gl_->CopyImageSubDataCHROMIUM(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+  EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
+}
+
 TEST_F(GLES2ImplementationTest, DiscardFramebufferEXT) {
   GLenum data[2][1] = {{0}};
   struct Cmds {