Remove swapped out state from RenderFrameImpl.

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index 3c94254d30b2302281dbd7fb6a569ea979bc7a15..f74f1a2380e16c0fa7de1abf50059f5529fb7c36 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -225,10 +225,6 @@ class CONTENT_EXPORT RenderFrameImpl
 
   ~RenderFrameImpl() override;
 
-  bool is_swapped_out() const {
-    return is_swapped_out_;
-  }
-
   // TODO(nasko): This can be removed once we don't have a swapped out state on
   // RenderFrames. See https://crbug.com/357747.
   void set_render_frame_proxy(RenderFrameProxy* proxy) {
@@ -626,10 +622,6 @@ class CONTENT_EXPORT RenderFrameImpl
       blink::WebFrameSerializerClient::FrameSerializationStatus status)
       override;
 
-  // Make this frame show an empty, unscriptable page.
-  // TODO(nasko): Remove this method once swapped out state is no longer used.
-  void NavigateToSwappedOutURL();
-
   // Binds this render frame's service registry.
   void BindServiceRegistry(
       mojo::shell::mojom::InterfaceProviderRequest services,
@@ -1015,7 +1007,6 @@ class CONTENT_EXPORT RenderFrameImpl
 
   base::WeakPtr<RenderViewImpl> render_view_;
   int routing_id_;
-  bool is_swapped_out_;
 
   // RenderFrameProxy exists only when is_swapped_out_ is true.

[alexmos, 2016/03/17 21:41:27]

This now talks about a non-existing flag, so maybe update this comment?  Were
you planning to deal with the proxy in a separate CL?

[nasko, 2016/03/17 23:19:11]

Thanks for catching that. Yes, I will look at whether we still need to keep this
proxy separately. I want to keep the CLs clean and easy to reason about.

   // TODO(nasko): This can be removed once we don't have a swapped out state on