Remove WebWaitableEvent and replace it with WaitableEvent.

content/child/blink_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 CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 82 matching lines @@
   blink::WebSocketHandle* createWebSocketHandle() override;
   blink::WebString userAgent() override;
   blink::WebData parseDataURL(const blink::WebURL& url,
                               blink::WebString& mimetype,
                               blink::WebString& charset) override;
   blink::WebURLError cancelledError(const blink::WebURL& url) const override;
   bool isReservedIPAddress(const blink::WebString& host) const override;
   bool portAllowed(const blink::WebURL& url) const override;
   blink::WebThread* createThread(const char* name) override;
   blink::WebThread* currentThread() override;
-  blink::WebWaitableEvent* createWaitableEvent(
-      blink::WebWaitableEvent::ResetPolicy policy,
-      blink::WebWaitableEvent::InitialState state) override;
-  blink::WebWaitableEvent* waitMultipleEvents(
-      const blink::WebVector<blink::WebWaitableEvent*>& events) override;
   void registerMemoryDumpProvider(blink::WebMemoryDumpProvider* wmdp,
                                   const char* name) override;
   void unregisterMemoryDumpProvider(
       blink::WebMemoryDumpProvider* wmdp) override;
   blink::WebProcessMemoryDump* createProcessMemoryDump() override;
   blink::Platform::WebMemoryAllocatorDumpGuid createWebMemoryAllocatorDumpGuid(
       const blink::WebString& guidStr) override;
   void addTraceLogEnabledStateObserver(
       blink::Platform::TraceLogEnabledStateObserver* observer) override;
   void removeTraceLogEnabledStateObserver(
@@ skipping 68 matching lines @@
   scoped_ptr<BackgroundSyncProvider> main_thread_sync_provider_;
 
   TrialTokenValidator trial_token_validator_;
 
   scheduler::WebThreadBase* compositor_thread_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_