Plumbing for browser process to access text surrounding selection.

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/user_metrics_action.h"
@@ skipping 302 matching lines @@
                         OnDidAccessInitialDocument)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidDisownOpener, OnDidDisownOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateTitle, OnUpdateTitle)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_RequestPermission,
                         OnRequestDesktopNotificationPermission)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Show,
                         OnShowDesktopNotification)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Cancel,
                         OnCancelDesktopNotification)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_TextSurroundingSelectionResponse,
+                        OnTextSurroundingSelectionResponse)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void RenderFrameHostImpl::Init() {
   GetProcess()->ResumeRequestsForView(routing_id_);
 }
 
 void RenderFrameHostImpl::OnAddMessageToConsole(
@@ skipping 353 matching lines @@
 
 void RenderFrameHostImpl::OnCancelDesktopNotification(int notification_id) {
   if (!cancel_notification_callbacks_.count(notification_id)) {
     NOTREACHED();
     return;
   }
   cancel_notification_callbacks_[notification_id].Run();
   cancel_notification_callbacks_.erase(notification_id);
 }
 
+void RenderFrameHostImpl::OnTextSurroundingSelectionResponse(
+    const base::string16& content,
+    unsigned start_offset,
+    unsigned end_offset) {
+  render_view_host_->OnTextSurroundingSelectionResponse(

[nasko, 2014/05/22 18:59:04]

It will be better to avoid forwarding new functionality to RVH, as it will
disappear at some point in the future.
Each RFH will have an associated view, so it will be better to introduce a
GetView() method and for now it will get it from RVH, but in the future will use
its own.

+      content, start_offset, end_offset);
+}
+
 void RenderFrameHostImpl::OnDidAccessInitialDocument() {
   delegate_->DidAccessInitialDocument();
 }
 
 void RenderFrameHostImpl::OnDidDisownOpener() {
   // This message is only sent for top-level frames. TODO(avi): when frame tree
   // mirroring works correctly, add a check here to enforce it.
   delegate_->DidDisownOpener(this);
 }
 
@@ skipping 179 matching lines @@
   cancel_notification_callbacks_.erase(notification_id);
 }
 
 void RenderFrameHostImpl::DesktopNotificationPermissionRequestDone(
     int callback_context) {
   Send(new DesktopNotificationMsg_PermissionRequestDone(
       routing_id_, callback_context));
 }
 
 }  // namespace content