[KeyboardEvent] Add embedder APIs to translate between Dom |key| enum and strings

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 "base/compiler_specific.h"
 #include "base/threading/thread_local_storage.h"
 #include "base/timer/timer.h"
@@ skipping 151 matching lines @@
 
   void SuspendSharedTimer();
   void ResumeSharedTimer();
   virtual void OnStartSharedTimer(base::TimeDelta delay) {}
 
   WebBluetoothImpl* BluetoothImplForTesting() { return bluetooth_.get(); }
 
   virtual blink::WebString domCodeStringFromEnum(int dom_code);
   virtual int domEnumFromCodeString(const blink::WebString& codeString);
 
+  virtual blink::WebString domKeyStringFromEnum(int dom_code);
+  virtual int domEnumFromKeyString(const blink::WebString& codeString);
+
  private:
   static void DestroyCurrentThread(void*);
 
   void DoTimeout() {
     if (shared_timer_func_ && !shared_timer_suspended_)
       shared_timer_func_();
   }
 
   void InternalInit();
 
@@ skipping 13 matching lines @@
   scoped_ptr<WebBluetoothImpl> bluetooth_;
 
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<NotificationDispatcher> notification_dispatcher_;
   scoped_refptr<PushDispatcher> push_dispatcher_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_