Eliminate WebViewImpl's dependency on WebDevToolsAgentImpl....

chrome/renderer/print_web_view_helper.h

 // Copyright (c) 2009 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 CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 #define CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 
 #include <vector>
 
 #include "base/gfx/size.h"
@@ skipping 189 matching lines @@
   virtual bool acceptsLoadDrops() { return false; }
   virtual void focusNext() {}
   virtual void focusPrevious() {}
   virtual void navigateBackForwardSoon(int offset) {}
   virtual int historyBackListCount() { return 0; }
   virtual int historyForwardListCount() { return 0; }
   virtual void didAddHistoryItem() {}
   virtual void focusAccessibilityObject(
       const WebKit::WebAccessibilityObject& object) {}
   virtual void didUpdateInspectorSettings() {}
-  virtual WebKit::WebDevToolsAgentClient* devToolsAgentClient() {
-    return NULL;
-  }
   virtual void queryAutofillSuggestions(
       const WebKit::WebNode& node, const WebKit::WebString& name,
       const WebKit::WebString& value) {}
   virtual void removeAutofillSuggestions(
       const WebKit::WebString& name, const WebKit::WebString& value) {}
 
   // WebKit::WebWidgetClient
   virtual void didInvalidateRect(const WebKit::WebRect&) {}
   virtual void didScrollRect(
       int dx, int dy, const WebKit::WebRect& clipRect) {}
@@ skipping 14 matching lines @@
   WebKit::WebView* print_web_view_;
   scoped_ptr<ViewMsg_PrintPages_Params> print_pages_params_;
   base::Time last_cancelled_script_print_;
   int user_cancelled_scripted_print_count_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
 };
 
 #endif  // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_