
The methodology used to generate this CL is documented in https://crbug.com/1098010#c34. No-Try: true No-Presubmit: true Bug: 1098010 Change-Id: I8c0f009d16350271f07d8e5e561085822cc9dd27 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3895935 Owners-Override: Avi Drissman <avi@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Mark Mentovai <mark@chromium.org> Auto-Submit: Avi Drissman <avi@chromium.org> Cr-Commit-Position: refs/heads/main@{#1047456}
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// Copyright 2014 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CONTENT_BROWSER_HOST_ZOOM_LEVEL_CONTEXT_H_
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#define CONTENT_BROWSER_HOST_ZOOM_LEVEL_CONTEXT_H_
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#include <memory>
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#include "content/browser/host_zoom_map_impl.h"
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#include "content/public/browser/browser_thread.h"
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#include "content/public/browser/zoom_level_delegate.h"
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namespace content {
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// This class manages a HostZoomMap and associates it with a ZoomLevelDelegate,
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// if one is provided. It also serves to keep the zoom level machinery details
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// separate from the owning StoragePartitionImpl. It must be destroyed on the
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// UI thread.
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class HostZoomLevelContext {
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public:
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explicit HostZoomLevelContext(
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std::unique_ptr<ZoomLevelDelegate> zoom_level_delegate);
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HostZoomLevelContext(const HostZoomLevelContext&) = delete;
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HostZoomLevelContext& operator=(const HostZoomLevelContext&) = delete;
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HostZoomMap* GetHostZoomMap() const { return host_zoom_map_impl_.get(); }
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ZoomLevelDelegate* GetZoomLevelDelegate() const {
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return zoom_level_delegate_.get();
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}
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private:
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friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
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friend class base::DeleteHelper<HostZoomLevelContext>;
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~HostZoomLevelContext();
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std::unique_ptr<HostZoomMapImpl> host_zoom_map_impl_;
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// Release the delegate before the HostZoomMap, in case it is carrying
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// any HostZoomMap::Subscription pointers.
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std::unique_ptr<ZoomLevelDelegate> zoom_level_delegate_;
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};
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} // namespace content
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#endif // CONTENT_BROWSER_HOST_ZOOM_LEVEL_CONTEXT_H_
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