[C++11 Allowed Features] Declares a type-safe null pointer converting from NULL to nullptr in src/…

cc/output/output_surface.cc

Index: cc/output/output_surface.cc
diff --git a/cc/output/output_surface.cc b/cc/output/output_surface.cc
index f0cbf5da205503f7244be7dad95744850d4392f7..4ed90e411e96b6aac4e60385d68a759020052b71 100644
--- a/cc/output/output_surface.cc
+++ b/cc/output/output_surface.cc
@@ -36,7 +36,7 @@ namespace cc {
 
 OutputSurface::OutputSurface(
     const scoped_refptr<ContextProvider>& context_provider)
-    : client_(NULL),
+    : client_(nullptr),
       context_provider_(context_provider),
       device_scale_factor_(-1),
       external_stencil_test_enabled_(false),
@@ -44,7 +44,7 @@ OutputSurface::OutputSurface(
 }
 
 OutputSurface::OutputSurface(scoped_ptr<SoftwareOutputDevice> software_device)
-    : client_(NULL),
+    : client_(nullptr),
       software_device_(software_device.Pass()),
       device_scale_factor_(-1),
       external_stencil_test_enabled_(false),
@@ -54,7 +54,7 @@ OutputSurface::OutputSurface(scoped_ptr<SoftwareOutputDevice> software_device)
 OutputSurface::OutputSurface(
     const scoped_refptr<ContextProvider>& context_provider,
     scoped_ptr<SoftwareOutputDevice> software_device)
-    : client_(NULL),
+    : client_(nullptr),
       context_provider_(context_provider),
       software_device_(software_device.Pass()),
       device_scale_factor_(-1),
@@ -127,7 +127,7 @@ bool OutputSurface::BindToClient(OutputSurfaceClient* client) {
   }
 
   if (!success)
-    client_ = NULL;
+    client_ = nullptr;
 
   return success;
 }
@@ -184,7 +184,7 @@ void OutputSurface::ResetContext3d() {
     context_provider_->SetMemoryPolicyChangedCallback(
         ContextProvider::MemoryPolicyChangedCallback());
   }
-  context_provider_ = NULL;
+  context_provider_ = nullptr;
 }
 
 void OutputSurface::EnsureBackbuffer() {