Make WebPrivatePtr capable of wrapping garbage collected objects.

Source/web/WebSpeechRecognitionResult.cpp

Index: Source/web/WebSpeechRecognitionResult.cpp
diff --git a/Source/web/WebSpeechRecognitionResult.cpp b/Source/web/WebSpeechRecognitionResult.cpp
index fee75e2bc968d520fa05b8d8c5afe5bded17a73e..c49204608e5bc01413b326e0bcca5a6c01952c40 100644
--- a/Source/web/WebSpeechRecognitionResult.cpp
+++ b/Source/web/WebSpeechRecognitionResult.cpp
@@ -34,16 +34,6 @@
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
-// FIXME: oilpan: If the WebCore-qualified Oilpan transition types
-// used below map to CPP #defines, move the type names they expand to
-// into the WebCore namespace. When Oilpan is always enabled, this
-// block can be removed.
-namespace WebCore {
-using WTF::RawPtr;
-using WTF::RefPtr;
-using WTF::Vector;
-};
-
 namespace blink {
 
 void WebSpeechRecognitionResult::assign(const WebSpeechRecognitionResult& other)
@@ -55,7 +45,7 @@ void WebSpeechRecognitionResult::assign(const WebVector<WebString>& transcripts,
 {
     ASSERT(transcripts.size() == confidences.size());
 
-    WebCore::WillBeHeapVector<WebCore::RefPtrWillBeMember<WebCore::SpeechRecognitionAlternative> > alternatives(transcripts.size());
+    WillBeHeapVector<RefPtrWillBeMember<WebCore::SpeechRecognitionAlternative> > alternatives(transcripts.size());
     for (size_t i = 0; i < transcripts.size(); ++i)
         alternatives[i] = WebCore::SpeechRecognitionAlternative::create(transcripts[i], confidences[i]);