For some vector icons, get the size from the vector definition.

chrome/browser/ui/tabs/tab_utils.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 "chrome/browser/ui/tabs/tab_utils.h"
 
 #include "base/command_line.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
 #include "chrome/browser/media/media_stream_capture_indicator.h"
@@ skipping 151 matching lines @@
   return TAB_MEDIA_STATE_NONE;
 }
 
 gfx::Image GetTabMediaIndicatorImage(TabMediaState media_state,
                                      SkColor button_color) {
   ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
   switch (media_state) {
 #if !defined(OS_MACOSX)
     case TAB_MEDIA_STATE_AUDIO_PLAYING:
     case TAB_MEDIA_STATE_AUDIO_MUTING: {
-      return gfx::Image(
-          gfx::CreateVectorIcon(media_state == TAB_MEDIA_STATE_AUDIO_PLAYING
-                                    ? gfx::VectorIconId::TAB_AUDIO
-                                    : gfx::VectorIconId::TAB_AUDIO_MUTING,
-                                16, button_color));
+      return gfx::Image(gfx::CreatePrimaryVectorIcon(
+          media_state == TAB_MEDIA_STATE_AUDIO_PLAYING
+              ? gfx::VectorIconId::TAB_AUDIO
+              : gfx::VectorIconId::TAB_AUDIO_MUTING,
+          button_color));
     }
 #else
     case TAB_MEDIA_STATE_AUDIO_PLAYING:
       return rb->GetNativeImageNamed(IDR_TAB_AUDIO_INDICATOR);
     case TAB_MEDIA_STATE_AUDIO_MUTING:
       return rb->GetNativeImageNamed(IDR_TAB_AUDIO_MUTING_INDICATOR);
 #endif
     case TAB_MEDIA_STATE_RECORDING:
       return rb->GetNativeImageNamed(IDR_TAB_RECORDING_INDICATOR);
     case TAB_MEDIA_STATE_CAPTURING:
@@ skipping 158 matching lines @@
                      const std::vector<int>& indices) {
   for (std::vector<int>::const_iterator i = indices.begin(); i != indices.end();
        ++i) {
     if (!tab_strip.GetWebContentsAt(*i)->IsAudioMuted())
       return false;
   }
   return true;
 }
 
 }  // namespace chrome