Revert of Replace the remaining scoped_ptr with unique_ptr in webrtc/modules/

webrtc/modules/desktop_capture/screen_capturer_unittest.cc

Index: webrtc/modules/desktop_capture/screen_capturer_unittest.cc
diff --git a/webrtc/modules/desktop_capture/screen_capturer_unittest.cc b/webrtc/modules/desktop_capture/screen_capturer_unittest.cc
index bc87ed3eba8ae5d67aa8d768cbeb1560e56df3d3..6f4963eb19f6cb07e83e8a578abf88719a7b986d 100644
--- a/webrtc/modules/desktop_capture/screen_capturer_unittest.cc
+++ b/webrtc/modules/desktop_capture/screen_capturer_unittest.cc
@@ -60,8 +60,8 @@
   FakeSharedMemoryFactory() {}
   ~FakeSharedMemoryFactory() override {}
 
-  std::unique_ptr<SharedMemory> CreateSharedMemory(size_t size) override {
-    return std::unique_ptr<SharedMemory>(
+  rtc::scoped_ptr<SharedMemory> CreateSharedMemory(size_t size) override {
+    return rtc::scoped_ptr<SharedMemory>(
         new FakeSharedMemory(new char[size], size));
   }
 
@@ -118,7 +118,7 @@
 
   capturer_->Start(&callback_);
   capturer_->SetSharedMemoryFactory(
-      std::unique_ptr<SharedMemoryFactory>(new FakeSharedMemoryFactory()));
+      rtc::scoped_ptr<SharedMemoryFactory>(new FakeSharedMemoryFactory()));
   capturer_->Capture(DesktopRegion());
 
   ASSERT_TRUE(frame);