[2/4]Allow hotplugging of primary DRM device

ui/ozone/platform/drm/gpu/drm_surface_unittest.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 "base/message_loop/message_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkDevice.h"
 #include "ui/ozone/platform/drm/gpu/crtc_controller.h"
 #include "ui/ozone/platform/drm/gpu/drm_buffer.h"
+#include "ui/ozone/platform/drm/gpu/drm_device_generator.h"
 #include "ui/ozone/platform/drm/gpu/drm_device_manager.h"
 #include "ui/ozone/platform/drm/gpu/drm_surface.h"
 #include "ui/ozone/platform/drm/gpu/drm_window.h"
 #include "ui/ozone/platform/drm/gpu/hardware_display_controller.h"
 #include "ui/ozone/platform/drm/gpu/screen_manager.h"
 #include "ui/ozone/platform/drm/test/mock_drm_device.h"
 
 namespace {
 
 // Create a basic mode for a 6x4 screen.
@@ skipping 31 matching lines @@
   message_loop_.reset(new base::MessageLoopForUI);
   std::vector<uint32_t> crtcs;
   crtcs.push_back(kDefaultCrtc);
   drm_ = new ui::MockDrmDevice(true, crtcs, kPlanesPerCrtc);
   buffer_generator_.reset(new ui::DrmBufferGenerator());
   screen_manager_.reset(new ui::ScreenManager(buffer_generator_.get()));
   screen_manager_->AddDisplayController(drm_, kDefaultCrtc, kDefaultConnector);
   screen_manager_->ConfigureDisplayController(
       drm_, kDefaultCrtc, kDefaultConnector, gfx::Point(), kDefaultMode);
 
-  drm_device_manager_.reset(new ui::DrmDeviceManager(drm_));
+  drm_device_manager_.reset(new ui::DrmDeviceManager(nullptr));
   scoped_ptr<ui::DrmWindow> window(new ui::DrmWindow(
       kDefaultWidgetHandle, drm_device_manager_.get(), screen_manager_.get()));
   window->Initialize();
   window->OnBoundsChanged(
       gfx::Rect(gfx::Size(kDefaultMode.hdisplay, kDefaultMode.vdisplay)));
   screen_manager_->AddWindow(kDefaultWidgetHandle, window.Pass());
 
   surface_.reset(
       new ui::DrmSurface(screen_manager_->GetWindow(kDefaultWidgetHandle)));
   surface_->ResizeCanvas(
@@ skipping 50 matching lines @@
   // Make sure the updates are correctly propagated to the native surface.
   for (int i = 0; i < image.height(); ++i) {
     for (int j = 0; j < image.width(); ++j) {
       if (j < kDefaultMode.hdisplay / 2 && i < kDefaultMode.vdisplay / 2)
         EXPECT_EQ(SK_ColorWHITE, image.getColor(j, i));
       else
         EXPECT_EQ(SK_ColorBLACK, image.getColor(j, i));
     }
   }
 }