Add ability for Widgets to override the DefaultThemeProvider

chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.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/views/omnibox/omnibox_popup_contents_view.h"
 
 #include <algorithm>
 
+#include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/themes/theme_properties.h"
+#include "chrome/browser/themes/theme_service.h"
+#include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 #include "chrome/browser/ui/views/omnibox/omnibox_result_view.h"
 #include "components/omnibox/browser/omnibox_view.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/material_design/material_design_controller.h"
 #include "ui/base/theme_provider.h"
 #include "ui/compositor/clip_transform_recorder.h"
 #include "ui/compositor/paint_recorder.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image.h"
@@ skipping 202 matching lines @@
     // The menu style assumes a top most window. We don't want that in this
     // case.
     params.keep_on_top = false;
 #else
     views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
 #endif
     params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
     params.parent = popup_parent->GetNativeView();
     params.bounds = GetPopupBounds();
     params.context = popup_parent->GetNativeWindow();
+    params.theme_provider = ThemeServiceFactory::GetForProfile(
+        ProfileManager::GetActiveUserProfile());

[oshima, 2015/09/02 18:44:12]

ditto

     popup_->Init(params);
     // Third-party software such as DigitalPersona identity verification can
     // hook the underlying window creation methods and use SendMessage to
     // synchronously change focus/activation, resulting in the popup being
     // destroyed by the time control returns here.  Bail out in this case to
     // avoid a NULL dereference.
     if (!popup_.get())
       return;
     popup_->SetVisibilityAnimationTransition(views::Widget::ANIMATE_NONE);
     popup_->SetContentsView(this);
@@ skipping 268 matching lines @@
   size_t index = GetIndexForPoint(event.location());
   if (!HasMatchAt(index))
     return;
   omnibox_view_->OpenMatch(model_->result().match_at(index), disposition,
                            GURL(), base::string16(), index);
 }
 
 OmniboxResultView* OmniboxPopupContentsView::result_view_at(size_t i) {
   return static_cast<OmniboxResultView*>(child_at(static_cast<int>(i)));
 }