Passing BackgroundColorSpan and UnderlineSpan from Clank to Blink.

ui/aura/remote_window_tree_host_win.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 "ui/aura/remote_window_tree_host_win.h"
 
 #include <windows.h>
 
 #include <algorithm>
 
@@ skipping 59 matching lines @@
   composition_text->Clear();
   composition_text->text = text;
   composition_text->selection.set_start(selection_start);
   composition_text->selection.set_end(selection_end);
   composition_text->underlines.resize(underlines.size());
   for (size_t i = 0; i < underlines.size(); ++i) {
     composition_text->underlines[i].start_offset = underlines[i].start_offset;
     composition_text->underlines[i].end_offset = underlines[i].end_offset;
     composition_text->underlines[i].color = SK_ColorBLACK;
     composition_text->underlines[i].thick = underlines[i].thick;
+    composition_text->underlines[i].background_color = SK_ColorTRANSPARENT;
   }
 }
 
 }  // namespace
 
 RemoteWindowTreeHostWin* g_instance = NULL;
 
 // static
 RemoteWindowTreeHostWin* RemoteWindowTreeHostWin::Instance() {
   return g_instance;
@@ skipping 425 matching lines @@
 }
 
 void RemoteWindowTreeHostWin::SetEventFlags(uint32 flags) {
   if (flags == event_flags_)
     return;
   event_flags_ = flags;
   SetVirtualKeyStates(event_flags_);
 }
 
 }  // namespace aura