Remove swapped out state from RenderFrameHost.

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 35195ba830e8ee03acb27607c324e071e9b4e0cf..ad89fc255bccf8c0c278c95e787a44c395c54ca9 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -115,10 +115,6 @@ class CONTENT_EXPORT RenderFrameHostImpl : public RenderFrameHost,
     // will either enter STATE_SWAPPED_OUT (if it is a main frame and there are
     // other active frames in its SiteInstance) or it will be deleted.

[Charlie Reis, 2016/03/14 20:12:57]

Let's update this comment, too.

(Maybe sometime we can make this a bool rather than a state enum, but no rush
for that.)

[nasko, 2016/03/14 21:32:30]

Yeah, I'd convert this to boolean separately.

     STATE_PENDING_SWAP_OUT,
-    // The RFH is swapped out and stored inside a RenderFrameProxyHost, being
-    // used as a placeholder to allow cross-process communication.  Only main
-    // frames can enter this state.
-    STATE_SWAPPED_OUT,
   };
   // Helper function to determine whether the RFH state should contribute to the
   // number of active frames of a SiteInstance or not.
@@ -362,10 +358,6 @@ class CONTENT_EXPORT RenderFrameHostImpl : public RenderFrameHost,
   // out.
   void OnSwappedOut();
 
-  // Whether this RenderFrameHost has been swapped out, such that the frame is
-  // now rendered by a RenderFrameHost in a different process.
-  bool is_swapped_out() const { return rfh_state_ == STATE_SWAPPED_OUT; }
-
   // The current state of this RFH.
   RenderFrameHostImplState rfh_state() const { return rfh_state_; }