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

content/browser/frame_host/web_contents_screenshot_manager.cc

 // 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.
 
-#include "content/browser/web_contents/web_contents_screenshot_manager.h"
+#include "content/browser/frame_host/web_contents_screenshot_manager.h"
 
 #include "base/command_line.h"
 #include "base/threading/worker_pool.h"
+#include "content/browser/frame_host/navigation_controller_impl.h"
+#include "content/browser/frame_host/navigation_entry_impl.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
-#include "content/browser/web_contents/navigation_controller_impl.h"
-#include "content/browser/web_contents/navigation_entry_impl.h"
-#include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/common/content_switches.h"
 #include "ui/gfx/codec/png_codec.h"
 
 namespace {
 
 // Minimum delay between taking screenshots.
 const int kMinScreenshotIntervalMS = 1000;
 
@@ skipping 242 matching lines @@
         owner_->GetEntryAtIndex(forward));
     if (ClearScreenshot(entry))
       --screenshot_count;
     ++forward;
   }
   CHECK_GE(screenshot_count, 0);
   CHECK_LE(screenshot_count, kMaxScreenshots);
 }
 
 }  // namespace content