[Ozone-DRI] Add support for asynchronous display configuration

ui/ozone/platform/dri/dri_gpu_platform_support.cc

 // 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.
 
 #include "ui/ozone/platform/dri/dri_gpu_platform_support.h"
 
 #include "ipc/ipc_message_macros.h"
 #include "ui/display/types/display_mode.h"
 #include "ui/display/types/display_snapshot.h"
 #include "ui/ozone/common/display_util.h"
@@ skipping 101 matching lines @@
 
 void DriGpuPlatformSupport::OnCursorMove(gfx::AcceleratedWidget widget,
                                          const gfx::Point& location) {
   window_manager_->GetWindowDelegate(widget)->MoveCursor(location);
 }
 
 void DriGpuPlatformSupport::OnForceDPMSOn() {
   ndd_->ForceDPMSOn();
 }
 
-void DriGpuPlatformSupport::OnRefreshNativeDisplays(
-    const std::vector<DisplaySnapshot_Params>& cached_displays) {
+void DriGpuPlatformSupport::OnRefreshNativeDisplays() {
   std::vector<DisplaySnapshot_Params> displays;
   std::vector<DisplaySnapshot*> native_displays = ndd_->GetDisplays();
 
-  // If any of the cached displays are in the list of new displays then apply
-  // their configuration immediately.
-  for (size_t i = 0; i < native_displays.size(); ++i) {
-    std::vector<DisplaySnapshot_Params>::const_iterator it =
-        std::find_if(cached_displays.begin(), cached_displays.end(),
-                     FindDisplayById(native_displays[i]->display_id()));
-
-    if (it == cached_displays.end())
-      continue;
-
-    if (it->has_current_mode)
-      OnConfigureNativeDisplay(it->display_id, it->current_mode, it->origin);
-    else
-      OnDisableNativeDisplay(it->display_id);
-  }
-
   for (size_t i = 0; i < native_displays.size(); ++i)
     displays.push_back(GetDisplaySnapshotParams(*native_displays[i]));
 
   sender_->Send(new OzoneHostMsg_UpdateNativeDisplays(displays));
 }
 
 void DriGpuPlatformSupport::OnConfigureNativeDisplay(
     int64_t id,
     const DisplayMode_Params& mode_param,
     const gfx::Point& origin) {
@@ skipping 21 matching lines @@
     mode = ndd_->FindDisplayMode(mode_param.size, mode_param.is_interlaced,
                                  mode_param.refresh_rate);
 
   if (!mode) {
     LOG(ERROR) << "Failed to find mode: size=" << mode_param.size.ToString()
                << " is_interlaced=" << mode_param.is_interlaced
                << " refresh_rate=" << mode_param.refresh_rate;
     return;
   }
 
-  ndd_->Configure(*display, mode, origin);
+  sender_->Send(new OzoneHostMsg_DisplayConfigured(
+      id, ndd_->Configure(*display, mode, origin)));
 }
 
 void DriGpuPlatformSupport::OnDisableNativeDisplay(int64_t id) {
   DisplaySnapshot* display = ndd_->FindDisplaySnapshot(id);
   if (display)
     ndd_->Configure(*display, NULL, gfx::Point());
   else
     LOG(ERROR) << "There is no display with ID " << id;
 }
 
@@ skipping 12 matching lines @@
 void DriGpuPlatformSupport::OnRemoveGraphicsDevice(const base::FilePath& path) {
   NOTIMPLEMENTED();
 }
 
 void DriGpuPlatformSupport::RelinquishGpuResources(
     const base::Closure& callback) {
   callback.Run();
 }
 
 }  // namespace ui