Oilpan: Move MediaStreamSource, MediaStreamComponent and MediaStreamDescriptor to oilpan's heap

public/platform/WebMediaStreamSource.h

Index: public/platform/WebMediaStreamSource.h
diff --git a/public/platform/WebMediaStreamSource.h b/public/platform/WebMediaStreamSource.h
index 58692287a9b053c1c168ca058d7ecd6d8fdf621f..266f3136abbc8547c5ac73d599c9964ff0dacb60 100644
--- a/public/platform/WebMediaStreamSource.h
+++ b/public/platform/WebMediaStreamSource.h
@@ -35,6 +35,9 @@
 #include "WebNonCopyable.h"
 #include "WebPrivatePtr.h"
 #include "WebVector.h"
+#if INSIDE_BLINK
+#include "platform/heap/Handle.h"
+#endif
 
 namespace blink {
 
@@ -57,6 +60,9 @@ public:
 #endif
 
     private:
+#if INSIDE_BLINK
+        GC_PLUGIN_IGNORE("http://crbug.com/409526")
+#endif
         MediaStreamSource* m_owner;
     };
 
@@ -111,9 +117,8 @@ public:
     BLINK_PLATFORM_EXPORT bool removeAudioConsumer(WebAudioDestinationConsumer*);
 
 #if INSIDE_BLINK
-    BLINK_PLATFORM_EXPORT WebMediaStreamSource(const WTF::PassRefPtr<MediaStreamSource>&);
+    BLINK_PLATFORM_EXPORT WebMediaStreamSource(MediaStreamSource*);
     BLINK_PLATFORM_EXPORT WebMediaStreamSource& operator=(MediaStreamSource*);
-    BLINK_PLATFORM_EXPORT operator WTF::PassRefPtr<MediaStreamSource>() const;
     BLINK_PLATFORM_EXPORT operator MediaStreamSource*() const;
 #endif