gpu: Add the ability to wait on upload completion.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 90f18ff00d00ce20b012c5b021de68c1051878c0..6e6b0e04560f66b8d93fa839b917bc6742a2772f 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -10170,6 +10170,21 @@ error::Error GLES2DecoderImpl::HandleAsyncTexSubImage2DCHROMIUM(
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleWaitAsyncTexImage2DCHROMIUM(

[reveman, 2013/03/04 06:10:57]

The android impl can do what it's currently doing but lets have this function
lookup the texture bound to the target and pass it to the async upload delegate
so an impl can do something smarter if possible.

+    uint32 immediate_data_size, const gles2::WaitAsyncTexImage2DCHROMIUM& c) {
+  TRACE_EVENT0("gpu", "GLES2DecoderImpl::HandleWaitAsyncTexImage2DCHROMIUM");
+  GLenum target = static_cast<GLenum>(c.target);
+
+  if (!validators_->texture_target.IsValid(target)) {
+    SetGLError(
+        GL_INVALID_ENUM, "glWaitAsyncTexImage2DCHROMIUM", "target");
+    return error::kNoError;
+  }
+
+  async_pixel_transfer_delegate_->WaitOnUploadCompletion();
+  return error::kNoError;
+}
+
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.