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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/ui/zoom/zoom_event_manager.h" | |
6 | |
7 #include "base/bind.h" | |
Dan Beam
2014/06/26 22:16:38
^ why do you need bind.h?
wjmaclean
2014/07/02 22:24:59
We don't, this is a straggler from an earlier vers
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8 #include "content/public/browser/browser_context.h" | |
9 | |
10 namespace { | |
11 static const char kBrowserZoomEventManager[] = "browser_zoom_event_manager"; | |
12 } | |
13 | |
14 ZoomEventManager* ZoomEventManager::GetForBrowserContext( | |
15 content::BrowserContext* context) { | |
16 if (!context->GetUserData(kBrowserZoomEventManager)) | |
17 context->SetUserData(kBrowserZoomEventManager, new ZoomEventManager); | |
18 return static_cast<ZoomEventManager*>( | |
19 context->GetUserData(kBrowserZoomEventManager)); | |
20 } | |
21 | |
22 ZoomEventManager::ZoomEventManager() { | |
23 } | |
Dan Beam
2014/06/26 22:16:38
nit: {}
wjmaclean
2014/07/02 22:24:59
Done.
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24 | |
25 ZoomEventManager::~ZoomEventManager() {} | |
26 | |
27 void ZoomEventManager::OnZoomLevelChanged( | |
28 const content::HostZoomMap::ZoomLevelChange& change) { | |
29 zoom_level_changed_callbacks_.Notify(change); | |
30 } | |
31 | |
32 scoped_ptr<content::HostZoomMap::Subscription> | |
33 ZoomEventManager::AddZoomLevelChangedCallback( | |
34 const content::HostZoomMap::ZoomLevelChangedCallback& callback) { | |
35 return zoom_level_changed_callbacks_.Add(callback); | |
36 } | |
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