C++11 declares a type safe null pointer

content/common/gpu/stream_texture_android.cc

Index: content/common/gpu/stream_texture_android.cc
diff --git a/content/common/gpu/stream_texture_android.cc b/content/common/gpu/stream_texture_android.cc
index eb7f3bbe32bfb9071cdc5e41e4495271c3c3a885..62ae4612277d318299ff708e76ae354b66ab6721 100644
--- a/content/common/gpu/stream_texture_android.cc
+++ b/content/common/gpu/stream_texture_android.cc
@@ -88,11 +88,11 @@ StreamTexture::~StreamTexture() {
 void StreamTexture::OnWillDestroyStub() {
   owner_stub_->RemoveDestructionObserver(this);
   owner_stub_->channel()->RemoveRoute(route_id_);
-  owner_stub_ = NULL;
+  owner_stub_ = nullptr;
 
   // If the owner goes away, there is no need to keep the SurfaceTexture around.
   // The GL texture will keep working regardless with the currently bound frame.
-  surface_texture_ = NULL;
+  surface_texture_ = nullptr;
 }
 
 void StreamTexture::Destroy(bool have_context) {
@@ -106,7 +106,7 @@ void StreamTexture::WillUseTexImage() {
   if (has_pending_frame_) {
     scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current;
     bool needs_make_current =
-        !owner_stub_->decoder()->GetGLContext()->IsCurrent(NULL);
+        !owner_stub_->decoder()->GetGLContext()->IsCurrent(nullptr);
     // On Android we should not have to perform a real context switch here when
     // using virtual contexts.
     DCHECK(!needs_make_current || !owner_stub_->decoder()