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

net/base/platform_mime_util_mac.mm

Index: net/base/platform_mime_util_mac.mm
diff --git a/net/base/platform_mime_util_mac.mm b/net/base/platform_mime_util_mac.mm
index 99315db98825e126160d6c2935524a460e556304..1b61200e4b467c2289fa7a808ef462ea29794513 100644
--- a/net/base/platform_mime_util_mac.mm
+++ b/net/base/platform_mime_util_mac.mm
@@ -36,17 +36,15 @@ bool PlatformMimeUtil::GetPlatformMimeTypeFromExtension(
   std::string ext_nodot = ext;
   if (ext_nodot.length() >= 1 && ext_nodot[0] == L'.')
     ext_nodot.erase(ext_nodot.begin());
-  base::mac::ScopedCFTypeRef<CFStringRef> ext_ref(
+  base::ScopedCFTypeRef<CFStringRef> ext_ref(
       base::SysUTF8ToCFStringRef(ext_nodot));
   if (!ext_ref)
     return false;
-  base::mac::ScopedCFTypeRef<CFStringRef> uti(
-      UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension,
-                                            ext_ref,
-                                            NULL));
+  base::ScopedCFTypeRef<CFStringRef> uti(UTTypeCreatePreferredIdentifierForTag(
+      kUTTagClassFilenameExtension, ext_ref, NULL));
   if (!uti)
     return false;
-  base::mac::ScopedCFTypeRef<CFStringRef> mime_ref(
+  base::ScopedCFTypeRef<CFStringRef> mime_ref(
       UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType));
   if (!mime_ref)
     return false;
@@ -57,17 +55,15 @@ bool PlatformMimeUtil::GetPlatformMimeTypeFromExtension(
 
 bool PlatformMimeUtil::GetPreferredExtensionForMimeType(
     const std::string& mime_type, base::FilePath::StringType* ext) const {
-  base::mac::ScopedCFTypeRef<CFStringRef> mime_ref(
+  base::ScopedCFTypeRef<CFStringRef> mime_ref(
       base::SysUTF8ToCFStringRef(mime_type));
   if (!mime_ref)
     return false;
-  base::mac::ScopedCFTypeRef<CFStringRef> uti(
-      UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType,
-                                            mime_ref,
-                                            NULL));
+  base::ScopedCFTypeRef<CFStringRef> uti(UTTypeCreatePreferredIdentifierForTag(
+      kUTTagClassMIMEType, mime_ref, NULL));
   if (!uti)
     return false;
-  base::mac::ScopedCFTypeRef<CFStringRef> ext_ref(
+  base::ScopedCFTypeRef<CFStringRef> ext_ref(
       UTTypeCopyPreferredTagWithClass(uti, kUTTagClassFilenameExtension));
   if (!ext_ref)
     return false;