Plumbing for browser process to access text surrounding selection.

content/browser/renderer_host/render_view_host_impl.h

Index: content/browser/renderer_host/render_view_host_impl.h
diff --git a/content/browser/renderer_host/render_view_host_impl.h b/content/browser/renderer_host/render_view_host_impl.h
index 88d211bed2337fbba4bdb1a0b1d0e35bbd33fe25..97ba85af890f3dbd0ba6fb03a6a52599b9629e79 100644
--- a/content/browser/renderer_host/render_view_host_impl.h
+++ b/content/browser/renderer_host/render_view_host_impl.h
@@ -438,6 +438,10 @@ class CONTENT_EXPORT RenderViewHostImpl
   // Whether the RVH is waiting for the unload ack from the renderer.
   bool IsWaitingForUnloadACK() const;
 
+  void OnTextSurroundingSelectionResponse(const base::string16& contont,
+                                          unsigned start_offset,
+                                          unsigned end_offset);
+
   // Update the FrameTree to use this RenderViewHost's main frame
   // RenderFrameHost. Called when the RenderViewHost is committed.
   //