[webcrypto] Remove MockWebCrypto.

public/testing/WebTestInterfaces.h

 /*
  * Copyright (C) 2012 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 18 matching lines @@
  */
 
 #ifndef WebTestInterfaces_h
 #define WebTestInterfaces_h
 
 #include "WebTestCommon.h"
 #include <memory>
 
 namespace WebKit {
 class WebAudioDevice;
-class WebCrypto;
 class WebFrame;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
 class WebRTCPeerConnectionHandler;
 class WebRTCPeerConnectionHandlerClient;
 class WebThemeEngine;
 class WebURL;
 class WebView;
@@ skipping 21 matching lines @@
     WebTestRunner* testRunner();
     WebKit::WebThemeEngine* themeEngine();
 
     WebKit::WebMediaStreamCenter* createMediaStreamCenter(WebKit::WebMediaStreamCenterClient*);
     WebKit::WebRTCPeerConnectionHandler* createWebRTCPeerConnectionHandler(WebKit::WebRTCPeerConnectionHandlerClient*);
 
     WebKit::WebMIDIAccessor* createMIDIAccessor(WebKit::WebMIDIAccessorClient*);
 
     WebKit::WebAudioDevice* createAudioDevice(double sampleRate);
 
-    WebKit::WebCrypto* crypto();
-
 #if WEBTESTRUNNER_IMPLEMENTATION
     TestInterfaces* testInterfaces();
 #endif
 
 private:
     std::auto_ptr<TestInterfaces> m_interfaces;
 };
 
 }
 
 #endif // WebTestInterfaces_h