[DRAFT] Create RenderFrameHostManager.

content/browser/frame_host/render_frame_host_manager.h

Index: content/browser/frame_host/render_frame_host_manager.h
diff --git a/content/browser/frame_host/render_frame_host_manager.h b/content/browser/frame_host/render_frame_host_manager.h
index 0360bd0b192387e1b817e073593242d2ba9227e4..cedb196c1b1360538eb3485f27c8dc7f00732e47 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -19,8 +19,8 @@
 
 namespace content {
 class BrowserContext;
-class InterstitialPageImpl;
 class FrameTreeNode;
+class InterstitialPageImpl;
 class NavigationControllerImpl;
 class NavigationEntry;
 class NavigationEntryImpl;
@@ -190,6 +190,10 @@ class CONTENT_EXPORT RenderFrameHostManager
   // network response and allow the pending RenderViewHost to commit.
   void SwappedOut(RenderViewHost* render_view_host);
 
+  // The RenderFrameHost has been swapped out, so we should resume the pending
+  // network response and allow the pending RenderFrameHost to commit.
+  void SwappedOutFrame(RenderFrameHostImpl* render_frame_host);
+
   // Called when a renderer's main frame navigates.
   void DidNavigateMainFrame(RenderViewHost* render_view_host);