Move ExtensionHost from src/chrome to src/extensions

extensions/browser/extension_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 CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
+#ifndef EXTENSIONS_BROWSER_EXTENSION_HOST_H_
+#define EXTENSIONS_BROWSER_EXTENSION_HOST_H_
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer/elapsed_timer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_delegate.h"
@@ skipping 13 matching lines @@
 
 namespace extensions {
 class Extension;
 class ExtensionHostDelegate;
 class WindowController;
 
 // This class is the browser component of an extension component's RenderView.
 // It handles setting up the renderer process, if needed, with special
 // privileges available to extensions.  It may have a view to be shown in the
 // browser UI, or it may be hidden.
+//
+// If you are adding code that only affects visible extension views (and not
+// invisible background pages) you should add it to ExtensionViewHost.
 class ExtensionHost : public content::WebContentsDelegate,
                       public content::WebContentsObserver,
                       public ExtensionFunctionDispatcher::Delegate,
                       public content::NotificationObserver {
  public:
   class ProcessCreationQueue;
 
   ExtensionHost(const Extension* extension,
                 content::SiteInstance* site_instance,
                 const GURL& url, ViewType host_type);
@@ skipping 41 matching lines @@
                               content::WebContents* new_contents,
                               WindowOpenDisposition disposition,
                               const gfx::Rect& initial_pos,
                               bool user_gesture,
                               bool* was_blocked) OVERRIDE;
   virtual void CloseContents(content::WebContents* contents) OVERRIDE;
   virtual void RequestMediaAccessPermission(
       content::WebContents* web_contents,
       const content::MediaStreamRequest& request,
       const content::MediaResponseCallback& callback) OVERRIDE;
-  virtual bool PreHandleGestureEvent(
-      content::WebContents* source,
-      const blink::WebGestureEvent& event) OVERRIDE;
 
   // content::NotificationObserver
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  protected:
   content::NotificationRegistrar* registrar() { return &registrar_; }
 
   // Called after the extension page finishes loading but before the
@@ skipping 61 matching lines @@
   ViewType extension_host_type_;
 
   // Used to measure how long it's been since the host was created.
   base::ElapsedTimer since_created_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionHost);
 };
 
 }  // namespace extensions
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_HOST_H_
+#endif  // EXTENSIONS_BROWSER_EXTENSION_HOST_H_