Make printing work better with OOPIF.

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 f0d8d06376d69286e96bfca5db50aa2f39ee9ff3..04f1f6defbe92cc66cf4303c331ef1bc7f9c7b72 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -165,6 +165,7 @@ class CONTENT_EXPORT RenderFrameHostImpl
   int GetProxyCount() override;
   void FilesSelectedInChooser(const std::vector<FileChooserFileInfo>& files,
                               FileChooserParams::Mode permissions) override;
+  bool HasSelection() override;
   void RequestTextSurroundingSelection(
       const TextSurroundingSelectionCallback& callback,
       int max_length) override;
@@ -266,7 +267,7 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // distinguished by owning a RenderWidgetHost, which manages input events
   // and painting for this frame and its contiguous local subtree in the
   // renderer process.
-  bool is_local_root() { return !!render_widget_host_; }
+  bool is_local_root() const { return !!render_widget_host_; }
 
   // Returns the RenderWidgetHostImpl attached to this frame or the nearest
   // ancestor frame, which could potentially be the root. For most input
@@ -1041,6 +1042,8 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // called (no pending instance should be set).
   bool should_reuse_web_ui_;
 
+  bool has_selection_;

[nasko, 2016/11/02 04:50:37]

nit: Put a small comment on what the meaning of this is and when it is
set/reset.

[Lei Zhang, 2016/11/08 11:13:22]

Done.

+
   // PlzNavigate: The LoFi state of the last navigation. This is used during
   // history navigation of subframes to ensure that subframes navigate with the
   // same LoFi status as the top-level frame.