Move extensions-only render IPC messages into the extension messages header.

chrome/renderer/chrome_render_view_observer.cc

 // 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.
 
 #include "chrome/renderer/chrome_render_view_observer.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 33 matching lines @@
 #include "third_party/WebKit/public/web/WebNode.h"
 #include "third_party/WebKit/public/web/WebNodeList.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/base/ui_base_switches_util.h"
 #include "ui/gfx/favicon_size.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/size_f.h"
 #include "ui/gfx/skbitmap_operations.h"
 #include "v8/include/v8-testing.h"
 
+#if defined(ENABLE_EXTENSIONS)
+#include "chrome/common/extensions/chrome_extension_messages.h"
+#endif
+
 using blink::WebAXObject;
 using blink::WebCString;
 using blink::WebDataSource;
 using blink::WebDocument;
 using blink::WebElement;
 using blink::WebFrame;
 using blink::WebGestureEvent;
 using blink::WebIconURL;
 using blink::WebLocalFrame;
 using blink::WebNode;
@@ skipping 450 matching lines @@
     WebElement element = node.to<WebElement>();
     if (!element.hasHTMLTagName(tag_name))
       continue;
     WebString value = element.getAttribute(attribute_name);
     if (value.isNull() || !LowerCaseEqualsASCII(value, "refresh"))
       continue;
     return true;
   }
   return false;
 }