Remove dependency of power_save_blocker_android on various content bits

content/browser/devtools/render_frame_devtools_agent_host.h

 // Copyright (c) 2012 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_BROWSER_DEVTOOLS_RENDER_FRAME_DEVTOOLS_AGENT_HOST_H_
 #define CONTENT_BROWSER_DEVTOOLS_RENDER_FRAME_DEVTOOLS_AGENT_HOST_H_
 
 #include <map>
 #include <memory>
 
@@ skipping 98 matching lines @@
   void DidCommitProvisionalLoadForFrame(
       RenderFrameHost* render_frame_host,
       const GURL& url,
       ui::PageTransition transition_type) override;
   void DidFailProvisionalLoad(
       RenderFrameHost* render_frame_host,
       const GURL& validated_url,
       int error_code,
       const base::string16& error_description,
       bool was_ignored_by_handler) override;
+  void WebContentsDestroyed() override;
 
   void AboutToNavigateRenderFrame(RenderFrameHost* old_host,
                                   RenderFrameHost* new_host);
   void AboutToNavigate(NavigationHandle* navigation_handle);
 
   void DispatchBufferedProtocolMessagesIfNecessary();
 
   void SetPending(RenderFrameHostImpl* host);
   void CommitPending();
   void DiscardPending();
@@ skipping 58 matching lines @@
 
   // The FrameTreeNode associated with this agent.
   FrameTreeNode* frame_tree_node_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameDevToolsAgentHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_RENDER_FRAME_DEVTOOLS_AGENT_HOST_H_