Move navigation and frame tree classes to a new frame_host/ directory.

content/browser/frame_host/web_contents_screenshot_manager.h

 // Copyright (c) 2013 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_WEB_CONTENTS_WEB_CONTENTS_SCREENSHOT_MANAGER_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_SCREENSHOT_MANAGER_H_
+#ifndef CONTENT_BROWSER_FRAME_HOST_WEB_CONTENTS_SCREENSHOT_MANAGER_H_
+#define CONTENT_BROWSER_FRAME_HOST_WEB_CONTENTS_SCREENSHOT_MANAGER_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 
 class SkBitmap;
 
 namespace content {
 
 class NavigationControllerImpl;
 class NavigationEntryImpl;
 class RenderViewHost;
 class ScreenshotData;
 
 // WebContentsScreenshotManager takes care of taking image-captures for the
 // current navigation entry of a NavigationControllerImpl, and managing these
 // captured images. These image-captures are used for history navigation using
 // overscroll gestures.
+// TODO(nasko): Rename this to better reflect that it is used for
+// navigation entries and not WebContents.
 class CONTENT_EXPORT WebContentsScreenshotManager {
  public:
   explicit WebContentsScreenshotManager(NavigationControllerImpl* controller);
   virtual ~WebContentsScreenshotManager();
 
   // Takes a screenshot of the last-committed entry of the controller.
   void TakeScreenshot();
 
   // Clears screenshots of all navigation entries.
   void ClearAllScreenshots();
@@ skipping 43 matching lines @@
   base::WeakPtrFactory<WebContentsScreenshotManager> screenshot_factory_;
 
   base::Time last_screenshot_time_;
   int min_screenshot_interval_ms_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsScreenshotManager);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_SCREENSHOT_MANAGER_H_
+#endif  // CONTENT_BROWSER_FRAME_HOST_WEB_CONTENTS_SCREENSHOT_MANAGER_H_