[part 2] Make classes and structures in modules fast-allocated.

Source/modules/mediastream/NavigatorMediaStream.cpp

Index: Source/modules/mediastream/NavigatorMediaStream.cpp
diff --git a/Source/modules/mediastream/NavigatorMediaStream.cpp b/Source/modules/mediastream/NavigatorMediaStream.cpp
index 7fc0d4ec39ff48940fc02130fb95b531915b2894..3b798063b612748946a4c30198ee013e1656b89a 100644
--- a/Source/modules/mediastream/NavigatorMediaStream.cpp
+++ b/Source/modules/mediastream/NavigatorMediaStream.cpp
@@ -40,14 +40,6 @@
 
 namespace blink {
 
-NavigatorMediaStream::NavigatorMediaStream()
-{
-}
-
-NavigatorMediaStream::~NavigatorMediaStream()
-{
-}
-
 void NavigatorMediaStream::webkitGetUserMedia(Navigator& navigator, const MediaStreamConstraints& options, NavigatorUserMediaSuccessCallback* successCallback, NavigatorUserMediaErrorCallback* errorCallback, ExceptionState& exceptionState)
 {
     if (!successCallback)