aura/cc: Fix GPU leak on resize.

content/browser/renderer_host/accelerated_surface_container_linux_cc.cc

 // Copyright (c) 2011 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/browser/renderer_host/accelerated_surface_container_linux.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/renderer_host/image_transport_client.h"
 #include "ui/gfx/compositor/compositor_cc.h"
+#include "ui/gfx/gl/gl_bindings.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/transform.h"
 
 namespace {
 
 class AcceleratedSurfaceContainerLinuxCC
     : public AcceleratedSurfaceContainerLinux, public ui::TextureCC {
  public:
   explicit AcceleratedSurfaceContainerLinuxCC(const gfx::Size& size)
       : size_(size),
         acquired_(false) {
   }
 
   virtual ~AcceleratedSurfaceContainerLinuxCC() {
+    if (texture_id_) {
+      ui::SharedResourcesCC* instance = ui::SharedResourcesCC::GetInstance();
+      DCHECK(instance);
+      instance->MakeSharedContextCurrent();
+      glDeleteTextures(1, &texture_id_);
+    }
+
     if (image_transport_client_.get())
       image_transport_client_->Release();
   }
 
   virtual void AddRef() { ui::TextureCC::AddRef(); }
   virtual void Release() { ui::TextureCC::Release(); }
 
   virtual bool Initialize(uint64* surface_id) OVERRIDE {
     ui::SharedResourcesCC* instance = ui::SharedResourcesCC::GetInstance();
     DCHECK(instance);
@@ skipping 36 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(AcceleratedSurfaceContainerLinuxCC);
 };
 
 }  // namespace
 
 // static
 AcceleratedSurfaceContainerLinux*
 AcceleratedSurfaceContainerLinux::Create(const gfx::Size& size) {
   return new AcceleratedSurfaceContainerLinuxCC(size);
 }