content: Cleanup class/struct forward declarations

content/browser/frame_host/render_frame_host_manager.h

 // Copyright 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_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <map>
 #include <memory>
 #include <unordered_map>
 
 #include "base/containers/hash_tables.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/global_request_id.h"
 #include "content/public/common/referrer.h"
 #include "ui/base/page_transition_types.h"
 #include "url/origin.h"
 
 namespace content {
 class BrowserContext;
-class CrossProcessFrameConnector;
 class FrameNavigationEntry;
 class FrameTreeNode;
 class InterstitialPageImpl;
 class NavigationControllerImpl;
 class NavigationEntry;
 class NavigationEntryImpl;
 class NavigationHandleImpl;
 class NavigationRequest;
 class NavigatorTestWithBrowserSideNavigation;
 class RenderFrameHostDelegate;
 class RenderFrameHostManagerTest;
 class RenderFrameProxyHost;
 class RenderViewHost;
 class RenderViewHostImpl;
 class RenderWidgetHostDelegate;
 class RenderWidgetHostView;
 class TestWebContents;
 class WebUIImpl;
-struct CommonNavigationParams;
 struct ContentSecurityPolicyHeader;
 struct FrameOwnerProperties;
 struct FrameReplicationState;
 
 // Manages RenderFrameHosts for a FrameTreeNode. It maintains a
 // current_frame_host() which is the content currently visible to the user. When
 // a frame is told to navigate to a different web site (as determined by
 // SiteInstance), it will replace its current RenderFrameHost with a new
 // RenderFrameHost dedicated to the new SiteInstance, possibly in a new process.
 //
@@ skipping 744 matching lines @@
   std::unique_ptr<RenderFrameHostImpl> speculative_render_frame_host_;
 
   base::WeakPtrFactory<RenderFrameHostManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_MANAGER_H_