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Side by Side Diff: content/browser/host_zoom_level_context.h

Issue 393133002: Migrate HostZoomMap to live in StoragePartition. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Remove ref counts, improve comments. Created 6 years, 4 months ago
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1 // Copyright (c) 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 #ifndef CONTENT_BROWSER_HOST_ZOOM_LEVEL_CONTEXT
6 #define CONTENT_BROWSER_HOST_ZOOM_LEVEL_CONTEXT
7
8 #include <string>
9
10 #include "base/files/file_path.h"
11 #include "base/macros.h"
12 #include "base/memory/ref_counted.h"
13 #include "content/public/browser/host_zoom_map.h"
14 #include "content/public/browser/zoom_level_prefs_delegate.h"
15
16 class JsonPrefStore;
17 class PrefService;
18 class PrefServiceSyncable;
19
20 namespace content {
21
22 class HostZoomMapImpl;
23
24 class HostZoomLevelContext {
Fady Samuel 2014/08/13 19:45:42 Explain the purpose of this class here.
wjmaclean 2014/08/14 18:18:21 Done.
25 public:
26 HostZoomLevelContext(scoped_ptr<ZoomLevelPrefsDelegate> delegate,
27 const base::FilePath& file_path,
28 double default_zoom_level);
29 ~HostZoomLevelContext();
30
31 HostZoomMapImpl* GetHostZoomMap() const { return host_zoom_map_impl_.get(); }
32 PrefService* GetZoomLevelPrefs() {
33 return delegate_ ? delegate_->GetPrefs() : NULL;
34 }
35
36 private:
37 scoped_ptr<HostZoomMapImpl> host_zoom_map_impl_;
38 // The delegate pointer needs to be released before the destructor for the
39 // HostZoomMapImpl is called, and so must be declared in this order.
40 scoped_ptr<ZoomLevelPrefsDelegate> delegate_;
41
42 DISALLOW_COPY_AND_ASSIGN(HostZoomLevelContext);
43 }; // HostZoomLevelContext
44
45 } // namespace content
46
47 #endif // CONTENT_BROWSER_HOST_ZOOM_LEVEL_CONTEXT
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