gpu: Add the ability to wait on upload completion.

gpu/command_buffer/common/gles2_cmd_format_test_autogen.h

Index: gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
diff --git a/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h b/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
index d45d9a2362688c0e5c61cb5e94ead62092916cdb..09c11ae1b0ec42b2979e287205a40c8d25134293 100644
--- a/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
+++ b/gpu/command_buffer/common/gles2_cmd_format_test_autogen.h
@@ -4318,6 +4318,20 @@ TEST_F(GLES2FormatTest, AsyncTexImage2DCHROMIUM) {
       next_cmd, sizeof(cmd));
 }
 
+TEST_F(GLES2FormatTest, WaitAsyncTexImage2DCHROMIUM) {
+  WaitAsyncTexImage2DCHROMIUM& cmd =
+      *GetBufferAs<WaitAsyncTexImage2DCHROMIUM>();
+  void* next_cmd = cmd.Set(
+      &cmd,
+      static_cast<GLenum>(11));
+  EXPECT_EQ(static_cast<uint32>(WaitAsyncTexImage2DCHROMIUM::kCmdId),
+            cmd.header.command);
+  EXPECT_EQ(sizeof(cmd), cmd.header.size * 4u);
+  EXPECT_EQ(static_cast<GLenum>(11), cmd.target);
+  CheckBytesWrittenMatchesExpectedSize(
+      next_cmd, sizeof(cmd));
+}
+
 TEST_F(GLES2FormatTest, DiscardFramebufferEXT) {
   DiscardFramebufferEXT& cmd = *GetBufferAs<DiscardFramebufferEXT>();
   void* next_cmd = cmd.Set(