Aura: Don't create GL context for CreateSharedSurfaceHandle()

content/browser/renderer_host/render_widget_host_view_aura.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/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 468 matching lines @@
   aura::client::SetTooltipText(window_, &tooltip_);
   aura::client::SetActivationDelegate(window_, this);
   aura::client::SetActivationChangeObserver(window_, this);
   aura::client::SetFocusChangeObserver(window_, this);
   gfx::Screen::GetScreenFor(window_)->AddObserver(this);
   software_frame_manager_.reset(new SoftwareFrameManager(
       weak_ptr_factory_.GetWeakPtr()));
 #if defined(OS_WIN)
   plugin_parent_window_ = NULL;
 #endif
+  ImageTransportFactory::GetInstance()->AddObserver(this);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, RenderWidgetHostView implementation:
 
 void RenderWidgetHostViewAura::InitAsChild(
     gfx::NativeView parent_view) {
   window_->Init(ui::LAYER_TEXTURED);
   window_->SetName("RenderWidgetHostViewAura");
 }
@@ skipping 1628 matching lines @@
 
 void RenderWidgetHostViewAura::OnAccessibilityEvents(
     const std::vector<AccessibilityHostMsg_EventParams>& params) {
   BrowserAccessibilityManager* manager =
       GetOrCreateBrowserAccessibilityManager();
   if (manager)
     manager->OnAccessibilityEvents(params);
 }
 
 gfx::GLSurfaceHandle RenderWidgetHostViewAura::GetCompositingSurface() {
-  if (shared_surface_handle_.is_null()) {
-    ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
-    shared_surface_handle_ = factory->CreateSharedSurfaceHandle();
-    if (!shared_surface_handle_.is_null())
-      factory->AddObserver(this);
-  }
-  return shared_surface_handle_;
+  return ImageTransportFactory::GetInstance()->GetSharedSurfaceHandle();
 }
 
 bool RenderWidgetHostViewAura::LockMouse() {
   aura::Window* root_window = window_->GetRootWindow();
   if (!root_window)
     return false;
 
   if (mouse_locked_)
     return true;
 
@@ skipping 1041 matching lines @@
 void RenderWidgetHostViewAura::OnLostResources() {
   current_surface_ = NULL;
   UpdateExternalTexture();
 
   idle_frame_subscriber_textures_.clear();
 
   // Make sure all ImageTransportClients are deleted now that the context those
   // are using is becoming invalid. This sends pending ACKs and needs to happen
   // after calling UpdateExternalTexture() which syncs with the impl thread.
   RunOnCommitCallbacks();
-
-  DCHECK(!shared_surface_handle_.is_null());
-  ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
-  factory->DestroySharedSurfaceHandle(shared_surface_handle_);
-  shared_surface_handle_ = factory->CreateSharedSurfaceHandle();
-  host_->CompositingSurfaceUpdated();
   host_->ScheduleComposite();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, private:
 
 RenderWidgetHostViewAura::~RenderWidgetHostViewAura() {
   if (paint_observer_)
     paint_observer_->OnViewDestroyed();
   if (touch_editing_client_)
     touch_editing_client_->OnViewDestroyed();
-  if (!shared_surface_handle_.is_null()) {
-    ImageTransportFactory* factory = ImageTransportFactory::GetInstance();
-    factory->DestroySharedSurfaceHandle(shared_surface_handle_);
-    factory->RemoveObserver(this);
-  }
+
+  ImageTransportFactory::GetInstance()->RemoveObserver(this);
+
   window_observer_.reset();
   if (window_->GetDispatcher())
     window_->GetDispatcher()->RemoveRootWindowObserver(this);
   UnlockMouse();
   if (popup_parent_host_view_) {
     DCHECK(popup_parent_host_view_->popup_child_host_view_ == NULL ||
            popup_parent_host_view_->popup_child_host_view_ == this);
     popup_parent_host_view_->popup_child_host_view_ = NULL;
   }
   if (popup_child_host_view_) {
@@ skipping 227 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content