Merge crbug.com/232556 to M28 branch (1500).

content/browser/gpu/gpu_internals_ui.cc

Index: content/browser/gpu/gpu_internals_ui.cc
===================================================================
--- content/browser/gpu/gpu_internals_ui.cc	(revision 207877)
+++ content/browser/gpu/gpu_internals_ui.cc	(working copy)
@@ -479,10 +479,8 @@
 
   // GpuDataManagerObserver implementation.
   virtual void OnGpuInfoUpdate() OVERRIDE;
+  virtual void OnGpuSwitching() OVERRIDE;
 
-  // Gpu switch handler.
-  void OnGpuSwitch();
-
   // Messages
   void OnBrowserBridgeInitialized(const base::ListValue* list);
   void OnCallAsync(const base::ListValue* list);
@@ -496,8 +494,6 @@
   // DCHECK).
   bool observing_;
 
-  GpuDataManagerImpl::GpuSwitchCallback gpu_switch_callback_;
-
   DISALLOW_COPY_AND_ASSIGN(GpuMessageHandler);
 };
 
@@ -508,15 +504,11 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 GpuMessageHandler::GpuMessageHandler()
-    : observing_(false),
-      gpu_switch_callback_(base::Bind(&GpuMessageHandler::OnGpuSwitch,
-                                      base::Unretained(this))) {
+    : observing_(false) {
 }
 
 GpuMessageHandler::~GpuMessageHandler() {
   GpuDataManagerImpl::GetInstance()->RemoveObserver(this);
-  GpuDataManagerImpl::GetInstance()->RemoveGpuSwitchCallback(
-      gpu_switch_callback_);
 }
 
 /* BrowserBridge.callAsync prepends a requestID to these messages. */
@@ -583,11 +575,8 @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // Watch for changes in GPUInfo
-  if (!observing_) {
+  if (!observing_)
     GpuDataManagerImpl::GetInstance()->AddObserver(this);
-    GpuDataManagerImpl::GetInstance()->AddGpuSwitchCallback(
-        gpu_switch_callback_);
-  }
   observing_ = true;
 
   // Tell GpuDataManager it should have full GpuInfo. If the
@@ -639,7 +628,7 @@
       *(gpu_info_val.get()));
 }
 
-void GpuMessageHandler::OnGpuSwitch() {
+void GpuMessageHandler::OnGpuSwitching() {
   GpuDataManagerImpl::GetInstance()->RequestCompleteGpuInfoIfNeeded();
 }