Add a new parameter dest_type to the GL_CHROMIUM_copy_texture 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 92b2e236bb03c4b0ab5b67b9c35494f32f743a2a..e162573525b28a2a3a46691f04414960106c2c31 100644
--- a/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
@@ -1678,9 +1678,9 @@ TEST_F(GLES2ImplementationTest, CopyTextureCHROMIUM) {
     cmds::CopyTextureCHROMIUM cmd;
   };
   Cmds expected;
-  expected.cmd.Init(1, 2, 3, 4, GL_ALPHA);
+  expected.cmd.Init(1, 2, 3, 4, GL_ALPHA, GL_UNSIGNED_BYTE);
 
-  gl_->CopyTextureCHROMIUM(1, 2, 3, 4, GL_ALPHA);
+  gl_->CopyTextureCHROMIUM(1, 2, 3, 4, GL_ALPHA, GL_UNSIGNED_BYTE);
   EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
 }