Add "Supports overlays" information to about:gpu.

gpu/ipc/service/gpu_init.cc

 // Copyright 2016 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 "gpu/ipc/service/gpu_init.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/trace_event/trace_event.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "gpu/config/gpu_driver_bug_list.h"
 #include "gpu/config/gpu_info_collector.h"
 #include "gpu/config/gpu_switches.h"
 #include "gpu/config/gpu_util.h"
 #include "gpu/ipc/service/gpu_watchdog_thread.h"
 #include "gpu/ipc/service/switches.h"
 #include "ui/gfx/switches.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_switches.h"
 #include "ui/gl/init/gl_factory.h"
 
 #if defined(USE_OZONE)
 #include "ui/ozone/public/ozone_platform.h"
 #endif
 
+#if defined(OS_WIN)
+#include "gpu/ipc/service/direct_composition_surface_win.h"
+#endif
+
 namespace gpu {
 
 namespace {
 
 void GetGpuInfoFromCommandLine(gpu::GPUInfo& gpu_info,
                                const base::CommandLine& command_line) {
   if (!command_line.HasSwitch(switches::kGpuVendorID) ||
       !command_line.HasSwitch(switches::kGpuDeviceID) ||
       !command_line.HasSwitch(switches::kGpuDriverVersion))
     return;
@@ skipping 52 matching lines @@
       break;
     case gpu::kCollectInfoNonFatalFailure:
       DVLOG(1) << "gpu::CollectGraphicsInfo failed (non-fatal).";
       break;
     case gpu::kCollectInfoNone:
       NOTREACHED();
       break;
     case gpu::kCollectInfoSuccess:
       break;
   }
+
+#if defined(OS_WIN)
+  if (gl::GetGLImplementation() == gl::kGLImplementationEGLGLES2 &&
+      gl::GLSurfaceEGL::IsDirectCompositionSupported() &&
+      DirectCompositionSurfaceWin::AreOverlaysSupported()) {
+    gpu_info.supports_overlays = true;
+  }
+#endif  // defined(OS_WIN)
 }
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 bool CanAccessNvidiaDeviceFile() {
   bool res = true;
   base::ThreadRestrictions::AssertIOAllowed();
   if (access("/dev/nvidiactl", R_OK) != 0) {
     DVLOG(1) << "NVIDIA device file /dev/nvidiactl access denied";
     res = false;
@@ skipping 135 matching lines @@
     watchdog_thread_ = gpu::GpuWatchdogThread::Create();
   }
 
   if (!gpu_info_.sandboxed)
     gpu_info_.sandboxed =
         sandbox_helper_->EnsureSandboxInitialized(watchdog_thread_.get());
   return true;
 }
 
 }  // namespace gpu