aw: Track UI request GL separately from other threads

android_webview/browser/shared_renderer_state.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "android_webview/browser/shared_renderer_state.h"
 
 #include "android_webview/browser/browser_view_renderer_client.h"
 #include "base/bind.h"
 #include "base/location.h"
 
@@ skipping 15 matching lines @@
       inside_hardware_release_(false),
       share_context_(NULL) {
   DCHECK(ui_loop_->BelongsToCurrentThread());
   DCHECK(client_on_ui_);
 }
 
 SharedRendererState::~SharedRendererState() {
   DCHECK(ui_loop_->BelongsToCurrentThread());
 }
 
+bool SharedRendererState::CurrentlyOnUIThread() {
+  return ui_loop_->BelongsToCurrentThread();
+}
+
 void SharedRendererState::ClientRequestDrawGL() {
   if (ui_loop_->BelongsToCurrentThread()) {
     ClientRequestDrawGLOnUIThread();
   } else {
     ui_loop_->PostTask(
         FROM_HERE,
         base::Bind(&SharedRendererState::ClientRequestDrawGLOnUIThread,
                    ui_thread_weak_ptr_));
   }
 }
@@ skipping 87 matching lines @@
     : shared_renderer_state_(shared_renderer_state) {
   DCHECK(!shared_renderer_state_->IsInsideHardwareRelease());
   shared_renderer_state_->SetInsideHardwareRelease(true);
 }
 
 InsideHardwareReleaseReset::~InsideHardwareReleaseReset() {
   shared_renderer_state_->SetInsideHardwareRelease(false);
 }
 
 }  // namespace android_webview