[Ozone] Rename and split the DRI platform for clarity

This CL does the following:
 - Moves the files in ui/ozone/platform/dri to ui/ozone/platform/drm
   since the platform name should really be DRM rather than DRI. Note,
   that the platform is still refered to as "dri" in GYP/GN since CrOS
   builds are still using the 'dri' name.
 - Rename all files with a "_dri*" suffix to a "drm_" prefix. Also
   rename all files with a "dri_" prefix to a "drm_" prefix.
 - Rename NativeDisplayDelegateDri to DrmDisplayDelegateManager since it
   is no longer dependent on the NativeDisplayDelegate interface and the
   new name better describes its intent.
 - Split the files in the platform into 2 sub-folders ("host" and
   "gpu"). Depending on the intended use place of the objects (Browser
   (host) process or GPU process) the files in the platform are split
   accordingly in the 2 sub-folders.

BUG=none
TBR=jam@chromium.org

Review URL: https://codereview.chromium.org/975063002

Cr-Commit-Position: refs/heads/master@{#319320}

1 files changed, 91 insertions, 0 deletions

diff --git a/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.h b/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.h
new file mode 100644
index 0000000..bbfa508
--- /dev/null
+++ b/ui/ozone/platform/drm/gpu/drm_gpu_display_manager.h
@@ -0,0 +1,91 @@
+// Copyright 2014 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 UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
+
+namespace base {
+class FilePath;
+class SingleThreadTaskRunner;
+struct FileDescriptor;
+}
+
+namespace ui {
+
+class DeviceManager;
+class DisplayMode;
+class DrmDevice;
+class DrmDeviceGenerator;
+class DrmDisplaySnapshot;
+class DrmDisplayMode;
+class ScreenManager;
+
+class DrmGpuDisplayManager {
+ public:
+  DrmGpuDisplayManager(ScreenManager* screen_manager,
+                       const scoped_refptr<DrmDevice>& primary_device,
+                       scoped_ptr<DrmDeviceGenerator> device_generator);
+  ~DrmGpuDisplayManager();
+
+  void InitializeIOTaskRunner(
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
+
+  // Returns a list of the connected displays. When this is called the list of
+  // displays is refreshed.
+  std::vector<DisplaySnapshot_Params> GetDisplays();
+
+  bool ConfigureDisplay(int64_t id,
+                        const DisplayMode_Params& mode,
+                        const gfx::Point& origin);
+  bool DisableDisplay(int64_t id);
+
+  // Takes/releases the control of the DRM devices.
+  bool TakeDisplayControl();
+  bool RelinquishDisplayControl();
+
+  // Called on DRM hotplug events to add/remove a DRM device.
+  void AddGraphicsDevice(const base::FilePath& path,
+                         const base::FileDescriptor& fd);
+  void RemoveGraphicsDevice(const base::FilePath& path);
+
+ private:
+  DrmDisplaySnapshot* FindDisplaySnapshot(int64_t id);
+  const DrmDisplayMode* FindDisplayMode(const gfx::Size& size,
+                                        bool is_interlaced,
+                                        float refresh_rate);
+
+  void RefreshDisplayList();
+  bool Configure(const DrmDisplaySnapshot& output,
+                 const DrmDisplayMode* mode,
+                 const gfx::Point& origin);
+
+  bool GetHDCPState(const DrmDisplaySnapshot& output, HDCPState* state);
+  bool SetHDCPState(const DrmDisplaySnapshot& output, HDCPState state);
+
+  // Notify ScreenManager of all the displays that were present before the
+  // update but are gone after the update.
+  void NotifyScreenManager(
+      const std::vector<DrmDisplaySnapshot*>& new_displays,
+      const std::vector<DrmDisplaySnapshot*>& old_displays) const;
+
+  ScreenManager* screen_manager_;  // Not owned.
+  scoped_ptr<DrmDeviceGenerator> drm_device_generator_;
+  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
+  std::vector<scoped_refptr<DrmDevice>> devices_;
+  // Modes can be shared between different displays, so we need to keep track
+  // of them independently for cleanup.
+  ScopedVector<const DisplayMode> cached_modes_;
+  ScopedVector<DrmDisplaySnapshot> cached_displays_;
+
+  DISALLOW_COPY_AND_ASSIGN(DrmGpuDisplayManager);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_