Plumbing for browser process to access text surrounding selection.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index a62b7f8cd18f1ac9a9a4f9aa57a18f1fad49ce28..2cd8f543d18e73d3a1db58b7396ded505fe40908 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -320,6 +320,8 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
                         OnShowDesktopNotification)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Cancel,
                         OnCancelDesktopNotification)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_TextSurroundingSelectionResponse,
+                        OnTextSurroundingSelectionResponse)
   IPC_END_MESSAGE_MAP()
 
   return handled;
@@ -693,6 +695,14 @@ void RenderFrameHostImpl::OnCancelDesktopNotification(int notification_id) {
   cancel_notification_callbacks_.erase(notification_id);
 }
 
+void RenderFrameHostImpl::OnTextSurroundingSelectionResponse(
+    const base::string16& content,
+    unsigned start_offset,
+    unsigned end_offset) {
+  render_view_host_->OnTextSurroundingSelectionResponse(
+      content, start_offset, end_offset);
+}
+
 void RenderFrameHostImpl::OnDidAccessInitialDocument() {
   delegate_->DidAccessInitialDocument();
 }