pepper: Use the RenderThread's shared context as the parent context.

content/renderer/pepper/pepper_plugin_delegate_impl.cc

 // Copyright (c) 2012 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 "content/renderer/pepper/pepper_plugin_delegate_impl.h"
 
 #include <cmath>
 #include <cstddef>
 #include <map>
 #include <queue>
@@ skipping 814 matching lines @@
 
 webkit::ppapi::PluginDelegate::PlatformContext3D*
     PepperPluginDelegateImpl::CreateContext3D() {
 #ifdef ENABLE_GPU
   // If accelerated compositing of plugins is disabled, fail to create a 3D
   // context, because it won't be visible. This allows graceful fallback in the
   // modules.
   const webkit_glue::WebPreferences& prefs = render_view_->webkit_preferences();
   if (!prefs.accelerated_compositing_for_plugins_enabled)
     return NULL;
-  return new PlatformContext3DImpl(this);
+  return new PlatformContext3DImpl;
 #else
   return NULL;
 #endif
 }
 
 void PepperPluginDelegateImpl::ReparentContext(
     webkit::ppapi::PluginDelegate::PlatformContext3D* context) {
-  static_cast<PlatformContext3DImpl*>(context)->SetParentContext(this);
+  static_cast<PlatformContext3DImpl*>(context)->
+      SetParentAndCreateBackingTextureIfNeeded();
 }
 
 webkit::ppapi::PluginDelegate::PlatformVideoCapture*
 PepperPluginDelegateImpl::CreateVideoCapture(
     const std::string& device_id,
     PlatformVideoCaptureEventHandler* handler) {
   return new PepperPlatformVideoCaptureImpl(AsWeakPtr(), device_id, handler);
 }
 
 webkit::ppapi::PluginDelegate::PlatformVideoDecoder*
@@ skipping 712 matching lines @@
                                                                        0);
     default:
       NOTREACHED();
       return 0;
   }
 #else
   return 0;
 #endif
 }
 
-WebGraphicsContext3DCommandBufferImpl*
-PepperPluginDelegateImpl::GetParentContextForPlatformContext3D() {
-  if (!offscreen_context3d_ || offscreen_context3d_->DestroyedOnMainThread()) {
-    offscreen_context3d_ =
-        RenderThreadImpl::current()->OffscreenContextProviderForMainThread();
-
-    if (!offscreen_context3d_->InitializeOnMainThread() ||
-        !offscreen_context3d_->BindToCurrentThread()) {
-      offscreen_context3d_ = NULL;
-      return NULL;
-    }
-  }
-  return offscreen_context3d_->Context3d();
-}
-
 MouseLockDispatcher::LockTarget*
     PepperPluginDelegateImpl::GetOrCreateLockTargetAdapter(
     webkit::ppapi::PluginInstance* instance) {
   MouseLockDispatcher::LockTarget* target = mouse_lock_instances_[instance];
   if (target)
     return target;
 
   return mouse_lock_instances_[instance] =
       new PluginInstanceLockTarget(instance);
 }
@@ skipping 15 matching lines @@
     RenderWidgetFullscreenPepper* container =
         static_cast<RenderWidgetFullscreenPepper*>(
             instance->fullscreen_container());
     return container->mouse_lock_dispatcher();
   } else {
     return render_view_->mouse_lock_dispatcher();
   }
 }
 
 }  // namespace content