UMA: Count the number of WebSocket.send() call for each argument type.

Source/modules/websockets/WebSocket.h

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 145 matching lines @@
         void dispatchQueuedEvents();
         void resumeTimerFired(Timer<EventQueue>*);
 
         State m_state;
         EventTarget* m_target;
         // FIXME: oilpan: This should be HeapDeque once it's implemented.
         Deque<RefPtrWillBePersistent<Event> > m_events;
         Timer<EventQueue> m_resumeTimer;
     };
 
+    enum WebSocketSendType {
+        WebSocketSendTypeString,
+        WebSocketSendTypeArrayBuffer,
+        WebSocketSendTypeArrayBufferView,
+        WebSocketSendTypeBlob,
+        WebSocketSendTypeMax,
+    };
+
     explicit WebSocket(ExecutionContext*);
 
     // Adds a console message with JSMessageSource and ErrorMessageLevel.
     void logError(const String& message);
 
     // Handle the JavaScript close method call. close() methods on this class
     // are just for determining if the optional code argument is supplied or
     // not.
     void closeInternal(int, const String&, ExceptionState&);
 
     size_t getFramingOverhead(size_t payloadSize);
 
-    // Checks the result of WebSocketChannel::send() method, and shows console
-    // message and sets ec appropriately.
-    void handleSendResult(WebSocketChannel::SendResult, ExceptionState&);
+    // Checks the result of WebSocketChannel::send() method, and:
+    // - shows console message
+    // - sets ExceptionState appropriately
+    // - reports data for UMA.
+    void handleSendResult(WebSocketChannel::SendResult, ExceptionState&, WebSocketSendType);
 
     // Updates m_bufferedAmountAfterClose given the amount of data passed to
     // send() method after the state changed to CLOSING or CLOSED.
     void updateBufferedAmountAfterClose(unsigned long);
 
     void releaseChannel();
 
     enum BinaryType {
         BinaryTypeBlob,
         BinaryTypeArrayBuffer
     };
 
     RefPtr<WebSocketChannel> m_channel;
 
     State m_state;
     KURL m_url;
     unsigned long m_bufferedAmount;
     unsigned long m_bufferedAmountAfterClose;
     BinaryType m_binaryType;
     // The subprotocol the server selected.
     String m_subprotocol;
     String m_extensions;
 
     RefPtr<EventQueue> m_eventQueue;
 };
 
 } // namespace WebCore
 
 #endif // WebSocket_h