Revert of Add blink::WebSocketHandshakeThrottle

third_party/WebKit/public/platform/Platform.h

Index: third_party/WebKit/public/platform/Platform.h
diff --git a/third_party/WebKit/public/platform/Platform.h b/third_party/WebKit/public/platform/Platform.h
index 2fdcc52a4dac4004b3bed5ff374b72140956ded6..f65d73f5627ffb14bccbdb9f964edbb93ac97086 100644
--- a/third_party/WebKit/public/platform/Platform.h
+++ b/third_party/WebKit/public/platform/Platform.h
@@ -34,8 +34,6 @@
 #ifdef WIN32
 #include <windows.h>
 #endif
-
-#include <memory>
 
 #include "BlameContext.h"
 #include "UserMetricsAction.h"
@@ -120,7 +118,6 @@
 class WebScrollbarBehavior;
 class WebSecurityOrigin;
 class WebServiceWorkerCacheStorage;
-class WebSocketHandshakeThrottle;
 class WebSpeechSynthesizer;
 class WebSpeechSynthesizerClient;
 class WebStorageNamespace;
@@ -573,13 +570,6 @@
   virtual std::unique_ptr<WebImageCaptureFrameGrabber>
   CreateImageCaptureFrameGrabber();
 
-  // WebSocket ----------------------------------------------------------
-
-  // If this method returns non-null the returned object will be used to
-  // determine if/when a new WebSocket connection can be exposed to Javascript.
-  virtual std::unique_ptr<WebSocketHandshakeThrottle>
-  CreateWebSocketHandshakeThrottle();
-
   // WebWorker ----------------------------------------------------------
 
   virtual void DidStartWorkerThread() {}