[8/8][Ozone-Dri] Pass DRM FD to GPU process on hotplug event

ui/ozone/platform/dri/dri_gpu_platform_support.h

Index: ui/ozone/platform/dri/dri_gpu_platform_support.h
diff --git a/ui/ozone/platform/dri/dri_gpu_platform_support.h b/ui/ozone/platform/dri/dri_gpu_platform_support.h
index 2290955a13d65508593ef49395bc3e82a2613b96..0068f2078f9ff2df9fb85e24511a025f350b24a7 100644
--- a/ui/ozone/platform/dri/dri_gpu_platform_support.h
+++ b/ui/ozone/platform/dri/dri_gpu_platform_support.h
@@ -5,6 +5,8 @@
 #ifndef UI_OZONE_PLATFORM_DRI_DRI_GPU_PLATFORM_SUPPORT_H_
 #define UI_OZONE_PLATFORM_DRI_DRI_GPU_PLATFORM_SUPPORT_H_
 
+#include <map>
+
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ -15,6 +17,7 @@
 class SkBitmap;
 
 namespace base {
+class FileDescriptor;
 class FilePath;
 class SingleThreadTaskRunner;
 }
@@ -30,6 +33,7 @@ class DriSurfaceFactory;
 class DriWindowDelegate;
 class DriWindowDelegateManager;
 class DriWrapper;
+class DriWrapperGenerator;
 class DrmDeviceManager;
 class NativeDisplayDelegateDri;
 class ScreenManager;
@@ -43,7 +47,8 @@ class DriGpuPlatformSupport : public GpuPlatformSupport {
                         DrmDeviceManager* drm_device_manager,
                         DriWindowDelegateManager* window_manager,
                         ScreenManager* screen_manager,
-                        scoped_ptr<NativeDisplayDelegateDri> ndd);
+                        scoped_ptr<NativeDisplayDelegateDri> ndd,
+                        scoped_ptr<DriWrapperGenerator> wrapper_generator);
   ~DriGpuPlatformSupport() override;
 
   void AddHandler(scoped_ptr<GpuPlatformSupport> handler);
@@ -76,19 +81,21 @@ class DriGpuPlatformSupport : public GpuPlatformSupport {
   void OnDisableNativeDisplay(int64_t id);
   void OnTakeDisplayControl();
   void OnRelinquishDisplayControl();
-  void OnAddGraphicsDevice(const base::FilePath& path);
+  void OnAddGraphicsDevice(const base::FilePath& path,
+                           const base::FileDescriptor& fd);
   void OnRemoveGraphicsDevice(const base::FilePath& path);
 
   void SetIOTaskRunner(
       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
   IPC::Sender* sender_;                       // Not owned.
-  scoped_refptr<DriWrapper> drm_;
   DrmDeviceManager* drm_device_manager_;      // Not owned.
   DriWindowDelegateManager* window_manager_;  // Not owned.
   ScreenManager* screen_manager_;             // Not owned.
 
+  std::map<base::FilePath, scoped_refptr<DriWrapper>> wrappers_;
   scoped_ptr<NativeDisplayDelegateDri> ndd_;
+  scoped_ptr<DriWrapperGenerator> wrapper_generator_;
   ScopedVector<GpuPlatformSupport> handlers_;
   scoped_refptr<IPC::MessageFilter> filter_;
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;