Replace scoped_ptr with unique_ptr everywhere

But keep #including scoped_ptr.h in .h files, so as not to break
WebRTC users who expect those .h files to give them rtc::scoped_ptr.

BUG=webrtc:5520

Review-Url: https://codereview.webrtc.org/1937693002
Cr-Commit-Position: refs/heads/master@{#12581}
diff --git a/webrtc/test/frame_generator_unittest.cc b/webrtc/test/frame_generator_unittest.cc
index 6376e2c2..10acd46 100644
--- a/webrtc/test/frame_generator_unittest.cc
+++ b/webrtc/test/frame_generator_unittest.cc
@@ -9,10 +9,11 @@
  */
 
 #include <stdio.h>
+
+#include <memory>
 #include <string>
 
 #include "testing/gtest/include/gtest/gtest.h"
-#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/test/frame_generator.h"
 #include "webrtc/test/testsupport/fileutils.h"
 
@@ -46,7 +47,7 @@
  protected:
   void WriteYuvFile(FILE* file, uint8_t y, uint8_t u, uint8_t v) {
     assert(file);
-    rtc::scoped_ptr<uint8_t[]> plane_buffer(new uint8_t[y_size]);
+    std::unique_ptr<uint8_t[]> plane_buffer(new uint8_t[y_size]);
     memset(plane_buffer.get(), y, y_size);
     fwrite(plane_buffer.get(), 1, y_size, file);
     memset(plane_buffer.get(), u, uv_size);
@@ -88,7 +89,7 @@
 };
 
 TEST_F(FrameGeneratorTest, SingleFrameFile) {
-  rtc::scoped_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
+  std::unique_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
       std::vector<std::string>(1, one_frame_filename_), kFrameWidth,
       kFrameHeight, 1));
   CheckFrameAndMutate(generator->NextFrame(), 255, 255, 255);
@@ -96,7 +97,7 @@
 }
 
 TEST_F(FrameGeneratorTest, TwoFrameFile) {
-  rtc::scoped_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
+  std::unique_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
       std::vector<std::string>(1, two_frame_filename_), kFrameWidth,
       kFrameHeight, 1));
   CheckFrameAndMutate(generator->NextFrame(), 0, 0, 0);
@@ -109,7 +110,7 @@
   files.push_back(two_frame_filename_);
   files.push_back(one_frame_filename_);
 
-  rtc::scoped_ptr<FrameGenerator> generator(
+  std::unique_ptr<FrameGenerator> generator(
       FrameGenerator::CreateFromYuvFile(files, kFrameWidth, kFrameHeight, 1));
   CheckFrameAndMutate(generator->NextFrame(), 0, 0, 0);
   CheckFrameAndMutate(generator->NextFrame(), 127, 127, 127);
@@ -119,7 +120,7 @@
 
 TEST_F(FrameGeneratorTest, TwoFrameFileWithRepeat) {
   const int kRepeatCount = 3;
-  rtc::scoped_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
+  std::unique_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
       std::vector<std::string>(1, two_frame_filename_), kFrameWidth,
       kFrameHeight, kRepeatCount));
   for (int i = 0; i < kRepeatCount; ++i)
@@ -134,7 +135,7 @@
   std::vector<std::string> files;
   files.push_back(two_frame_filename_);
   files.push_back(one_frame_filename_);
-  rtc::scoped_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
+  std::unique_ptr<FrameGenerator> generator(FrameGenerator::CreateFromYuvFile(
       files, kFrameWidth, kFrameHeight, kRepeatCount));
   for (int i = 0; i < kRepeatCount; ++i)
     CheckFrameAndMutate(generator->NextFrame(), 0, 0, 0);