chromeos: Choose monitor native mode as best match mode

ui/display/chromeos/display_configurator.cc

 // Copyright 2014 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/display/chromeos/display_configurator.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 111 matching lines @@
     const gfx::Size& size) {
   const DisplayMode* best_mode = NULL;
   for (DisplayModeList::const_iterator it = display.modes().begin();
        it != display.modes().end();
        ++it) {
     const DisplayMode* mode = *it;
 
     if (mode->size() != size)
       continue;
 
+    if (mode == display.native_mode()) {
+      best_mode = mode;
+      break;
+    }
+
     if (!best_mode) {
       best_mode = mode;
       continue;
     }
 
     if (mode->is_interlaced()) {
       if (!best_mode->is_interlaced())
         continue;
     } else {
       // Reset the best rate if the non interlaced is
@@ skipping 827 matching lines @@
         return state_controller_->GetStateForDisplayIds(display_ids);
       }
     }
     default:
       NOTREACHED();
   }
   return MULTIPLE_DISPLAY_STATE_INVALID;
 }
 
 }  // namespace ui