[WebRTC] Disable DirectX capturer tests if the system does not support it.

webrtc/modules/desktop_capture/screen_capturer_unittest.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include <memory>
 #include <utility>
 
 #include "webrtc/modules/desktop_capture/screen_capturer.h"
 
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/base/constructormagic.h"
+#include "webrtc/base/logging.h"
 #include "webrtc/modules/desktop_capture/desktop_capture_options.h"
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/desktop_region.h"
 #include "webrtc/modules/desktop_capture/screen_capturer_mock_objects.h"
 
+#if defined(WEBRTC_WIN)
+#include "webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h"
+#endif  // defined(WEBRTC_WIN)
+
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::Return;
 
 const int kTestSharedMemoryId = 123;
 
 namespace webrtc {
 
 class ScreenCapturerTest : public testing::Test {
  public:
@@ skipping 105 matching lines @@
   EXPECT_CALL(callback_,
               OnCaptureResultPtr(DesktopCapturer::Result::SUCCESS, _))
       .WillOnce(SaveUniquePtrArg(&frame));
 
   capturer_->Start(&callback_);
   capturer_->Capture(DesktopRegion());
   ASSERT_TRUE(frame);
 }
 
 TEST_F(ScreenCapturerTest, UseDirectxCapturer) {
+  if (!ScreenCapturerWinDirectx::IsSupported()) {
+    LOG(LS_WARNING) << "Directx capturer is not supported";
+    return;
+  }
+
   DesktopCaptureOptions options(DesktopCaptureOptions::CreateDefault());
   options.set_allow_directx_capturer(true);
   capturer_.reset(ScreenCapturer::Create(options));
 
   std::unique_ptr<DesktopFrame> frame;
   EXPECT_CALL(callback_,
               OnCaptureResultPtr(DesktopCapturer::Result::SUCCESS, _))
       .WillOnce(SaveUniquePtrArg(&frame));
 
   capturer_->Start(&callback_);
   capturer_->Capture(DesktopRegion());
   ASSERT_TRUE(frame);
 }
 
 TEST_F(ScreenCapturerTest, UseDirectxCapturerWithSharedBuffers) {
+  if (!ScreenCapturerWinDirectx::IsSupported()) {
+    LOG(LS_WARNING) << "Directx capturer is not supported";
+    return;
+  }
+
   DesktopCaptureOptions options(DesktopCaptureOptions::CreateDefault());
   options.set_allow_directx_capturer(true);
   capturer_.reset(ScreenCapturer::Create(options));
 
   std::unique_ptr<DesktopFrame> frame;
   EXPECT_CALL(callback_,
               OnCaptureResultPtr(DesktopCapturer::Result::SUCCESS, _))
       .WillOnce(SaveUniquePtrArg(&frame));
 
   capturer_->Start(&callback_);
   capturer_->SetSharedMemoryFactory(
       std::unique_ptr<SharedMemoryFactory>(new FakeSharedMemoryFactory()));
   capturer_->Capture(DesktopRegion());
   ASSERT_TRUE(frame);
   ASSERT_TRUE(frame->shared_memory());
   EXPECT_EQ(frame->shared_memory()->id(), kTestSharedMemoryId);
 }
 
 #endif  // defined(WEBRTC_WIN)
 
 }  // namespace webrtc