Move ContentVideoCaptureDeviceCore from src/content to src/media

content/browser/media/capture/capture_resolution_chooser.h

-// Copyright 2015 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.
-
-#ifndef CONTENT_BROWSER_MEDIA_CAPTURE_CAPTURE_RESOLUTION_CHOOSER_H_
-#define CONTENT_BROWSER_MEDIA_CAPTURE_CAPTURE_RESOLUTION_CHOOSER_H_
-
-#include "content/common/content_export.h"
-#include "media/base/video_capture_types.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace content {
-
-// Encapsulates the logic that determines the capture frame resolution based on:
-//   1. The configured maximum frame resolution and resolution change policy.
-//   2. The resolution of the source content.
-//   3. The current capabilities of the end-to-end system, in terms of the
-//      maximum number of pixels per frame.
-class CONTENT_EXPORT CaptureResolutionChooser {
- public:
-  // media::ResolutionChangePolicy determines whether the variable frame
-  // resolutions being computed must adhere to a fixed aspect ratio or not, or
-  // that there must only be a single fixed resolution.
-  CaptureResolutionChooser(
-      const gfx::Size& max_frame_size,
-      media::ResolutionChangePolicy resolution_change_policy);
-  ~CaptureResolutionChooser();
-
-  // Returns the current capture frame resolution to use.
-  gfx::Size capture_size() const {
-    return capture_size_;
-  }
-
-  // Updates the capture size based on a change in the resolution of the source
-  // content.
-  void SetSourceSize(const gfx::Size& source_size);
-
- private:
-  // Called after any update that requires |capture_size_| be re-computed.
-  void RecomputeCaptureSize();
-
-  // Hard constraints.
-  const gfx::Size max_frame_size_;
-  const gfx::Size min_frame_size_;  // Computed from the ctor arguments.
-
-  // Specifies the set of heuristics to use.
-  const media::ResolutionChangePolicy resolution_change_policy_;
-
-  // The capture frame resolution to use, ignoring the limitations imposed by
-  // the capability metric.
-  gfx::Size constrained_size_;
-
-  // The current computed capture frame resolution.
-  gfx::Size capture_size_;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_MEDIA_CAPTURE_RESOLUTION_CHOOSER_H_