Add missing closing namespace comments to wtf.

third_party/WebKit/Source/wtf/text/StringImplCF.cpp

Index: third_party/WebKit/Source/wtf/text/StringImplCF.cpp
diff --git a/third_party/WebKit/Source/wtf/text/StringImplCF.cpp b/third_party/WebKit/Source/wtf/text/StringImplCF.cpp
index 844ae4987cc4d27924ffeb70b0e1f024d7072a1e..97f5267f01e9229a3044fe95674ca3b567762ce4 100644
--- a/third_party/WebKit/Source/wtf/text/StringImplCF.cpp
+++ b/third_party/WebKit/Source/wtf/text/StringImplCF.cpp
@@ -122,7 +122,7 @@ static CFAllocatorRef allocator()
     return allocator;
 }
 
-}
+} // namespace StringWrapperCFAllocator
 
 RetainPtr<CFStringRef> StringImpl::createCFString()
 {
@@ -157,6 +157,6 @@ RetainPtr<CFStringRef> StringImpl::createCFString()
 // more calls to createCFString than calls to the create functions with the appropriate
 // allocator, so it's probably not urgent optimize that case.
 
-}
+} // namespace WTF
 
 #endif // OS(MACOSX)