mac: Replace base::mac::ScopedCFTypeRef with base::ScopedCFTypeRef.

This CL was created fully mechanically by running

  git grep -l base::mac::ScopedCFTypeRef | xargs sed -i -e 's/base::mac::ScopedCFTypeRef/base::ScopedCFTypeRef/g'
  git commit -a -m.
  git clang-format HEAD^ --style=Chromium
  git commit -a -m.
  git cl upload -t $TITLE

BUG=251957
[email protected]

Review URL: https://codereview.chromium.org/16917011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@208245 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/browser/renderer_host/compositing_iosurface_mac.h b/content/browser/renderer_host/compositing_iosurface_mac.h
index e8fdad9..c470fa0 100644
--- a/content/browser/renderer_host/compositing_iosurface_mac.h
+++ b/content/browser/renderer_host/compositing_iosurface_mac.h
@@ -322,7 +322,7 @@
 
   // IOSurface data.
   uint64 io_surface_handle_;
-  base::mac::ScopedCFTypeRef<CFTypeRef> io_surface_;
+  base::ScopedCFTypeRef<CFTypeRef> io_surface_;
 
   // The width and height of the io surface.
   gfx::Size pixel_io_surface_size_;  // In pixels.