gpu: Defer reads from default framebuffer when needed.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h
index 7e817667e43637c83b3518ad94d230aa64df9229..914ced8d2c2f5bec6adc93729c39252de657933e 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_1_autogen.h
@@ -308,8 +308,15 @@ TEST_F(GLES2DecoderTest1, CheckFramebufferStatusInvalidArgsBadSharedMemoryId) {
   cmd.Init(GL_FRAMEBUFFER, shared_memory_id_, kInvalidSharedMemoryOffset);
   EXPECT_EQ(error::kOutOfBounds, ExecuteCmd(cmd));
 }
-// TODO(gman): Clear
 
+TEST_F(GLES2DecoderTest1, ClearValidArgs) {
+  EXPECT_CALL(*gl_, Clear(1));
+  SpecializedSetup<Clear, 0>(true);
+  Clear cmd;
+  cmd.Init(1);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
 
 TEST_F(GLES2DecoderTest1, ClearColorValidArgs) {
   EXPECT_CALL(*gl_, ClearColor(1, 2, 3, 4));