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

ui/gfx/image/image_ios.mm

Index: ui/gfx/image/image_ios.mm
diff --git a/ui/gfx/image/image_ios.mm b/ui/gfx/image/image_ios.mm
index 1e21bd83a2e5567b1cfe33f0e5bd15fe2d6dade8..e2ff8dc0629be65daa47b39b7b4be5bcd83ad28a 100644
--- a/ui/gfx/image/image_ios.mm
+++ b/ui/gfx/image/image_ios.mm
@@ -27,20 +27,19 @@ namespace {
 // Caller takes ownership of returned UIImage.
 UIImage* CreateErrorUIImage(float scale) {
   LOG(ERROR) << "Unable to decode PNG into UIImage.";
-  base::mac::ScopedCFTypeRef<CGColorSpaceRef> color_space(
+  base::ScopedCFTypeRef<CGColorSpaceRef> color_space(
       CGColorSpaceCreateDeviceRGB());
-  base::mac::ScopedCFTypeRef<CGContextRef> context(
-      CGBitmapContextCreate(NULL,  // Allow CG to allocate memory.
-                            16,  // width
-                            16,  // height
-                            8,  // bitsPerComponent
-                            0,  // CG will calculate by default.
-                            color_space,
-                            kCGImageAlphaPremultipliedFirst |
-                                kCGBitmapByteOrder32Host));
+  base::ScopedCFTypeRef<CGContextRef> context(CGBitmapContextCreate(
+      NULL,  // Allow CG to allocate memory.
+      16,    // width
+      16,    // height
+      8,     // bitsPerComponent
+      0,     // CG will calculate by default.
+      color_space,
+      kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host));
   CGContextSetRGBFillColor(context, 1.0, 0.0, 0.0, 1.0);
   CGContextFillRect(context, CGRectMake(0.0, 0.0, 16, 16));
-  base::mac::ScopedCFTypeRef<CGImageRef> cg_image(
+  base::ScopedCFTypeRef<CGImageRef> cg_image(
       CGBitmapContextCreateImage(context));
   return [[UIImage imageWithCGImage:cg_image.get()
                               scale:scale