Remove unused WebMIMERegistry

sky/engine/testing/platform/platform_impl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SKY_ENGINE_TESTING_PLATFORM_PLATFORM_IMPL_H_
 #define SKY_ENGINE_TESTING_PLATFORM_PLATFORM_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/threading/thread_local_storage.h"
 #include "base/timer/timer.h"
 #include "sky/engine/public/platform/Platform.h"
-#include "sky/engine/testing/platform/webmimeregistry_impl.h"
 #include "sky/engine/testing/platform/webthemeengine_impl.h"
 #include "sky/engine/testing/platform/webunittestsupport_impl.h"
 
 namespace sky {
 
 class PlatformImpl : public blink::Platform {
  public:
   explicit PlatformImpl();
   virtual ~PlatformImpl();
 
   // blink::Platform methods:
   virtual blink::WebUnitTestSupport* unitTestSupport();
-  virtual blink::WebMimeRegistry* mimeRegistry();
   virtual blink::WebThemeEngine* themeEngine();
   virtual blink::WebString defaultLocale();
   virtual double currentTime();
   virtual double monotonicallyIncreasingTime();
   virtual void setSharedTimerFiredFunction(void (*func)());
   virtual void setSharedTimerFireInterval(double interval_seconds);
   virtual void stopSharedTimer();
   virtual const unsigned char* getTraceCategoryEnabledFlag(
       const char* category_name);
 
  private:
   void SuspendSharedTimer();
   void ResumeSharedTimer();
 
   void DoTimeout() {
     if (shared_timer_func_ && !shared_timer_suspended_)
       shared_timer_func_();
   }
 
   base::MessageLoop* main_loop_;
   base::OneShotTimer<PlatformImpl> shared_timer_;
   void (*shared_timer_func_)();
   double shared_timer_fire_time_;
   bool shared_timer_fire_time_was_set_while_suspended_;
   int shared_timer_suspended_;  // counter
   WebThemeEngineImpl theme_engine_;
-  WebMimeRegistryImpl mime_registry_;
   WebUnitTestSupportImpl unit_test_support_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformImpl);
 };
 
 }  // namespace sky
 
 #endif  // SKY_ENGINE_TESTING_PLATFORM_PLATFORM_IMPL_H_