Implement "Look Up In Dictionary" context menu item asynchronously. (OS X)

content/renderer/text_input_client_observer.cc

 // Copyright (c) 2012 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/renderer/text_input_client_observer.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "content/common/text_input_client_messages.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/render_view_impl.h"
@@ skipping 70 matching lines @@
       frame->firstRectForCharacterRange(range.start(), range.length(),
                                         web_rect);
       rect = web_rect;
     }
   }
   Send(new TextInputClientReplyMsg_GotFirstRectForRange(routing_id(), rect));
 }
 
 void TextInputClientObserver::OnStringForRange(gfx::Range range) {
 #if defined(OS_MACOSX)
+  blink::WebPoint baselinePoint;
   NSAttributedString* string = nil;
   blink::WebLocalFrame* frame = webview()->focusedFrame()->toWebLocalFrame();
   if (frame) {
     string = blink::WebSubstringUtil::attributedSubstringInRange(
-        frame, range.start(), range.length());
+        frame, range.start(), range.length(), &baselinePoint);
   }
   scoped_ptr<const mac::AttributedStringCoder::EncodedString> encoded(
       mac::AttributedStringCoder::Encode(string));
   Send(new TextInputClientReplyMsg_GotStringForRange(routing_id(),
-      *encoded.get()));
+      *encoded.get(), baselinePoint));
 #else
   NOTIMPLEMENTED();
 #endif
 }
 
 }  // namespace content