Add prefix to empty param tests.

googletest will no longer support empty prefix
for parameterized INSTANTIATE_TEST_SUITE_P.
Adding "All" prefix to existing empty prefix test suites.

This CL was uploaded by git cl split.

R=guidou@chromium.org

Bug: 1023677
Change-Id: Iaa74f84ea442bebf4ff838c9d7371099d0544c1e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1926941
Auto-Submit: Ilia Samsonov <isamsonov@google.com>
Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Ilia Samsonov <isamsonov@google.com>
Cr-Commit-Position: refs/heads/master@{#717225}

third_party/blink/renderer/modules/mediarecorder/audio_track_recorder_unittest.cc

@@ -374,7 +374,7 @@ TEST_P(AudioTrackRecorderTest, PauseResume) {
   testing::Mock::VerifyAndClearExpectations(this);
 }
 
-INSTANTIATE_TEST_SUITE_P(,
+INSTANTIATE_TEST_SUITE_P(All,
                          AudioTrackRecorderTest,
                          testing::ValuesIn(kATRTestParams));
 }  // namespace blink

third_party/blink/renderer/modules/mediarecorder/media_recorder_handler_unittest.cc

@@ -346,7 +346,7 @@ TEST_P(MediaRecorderHandlerTest, EncodeVideoFrames) {
   media_recorder_handler_ = nullptr;
 }
 
-INSTANTIATE_TEST_SUITE_P(,
+INSTANTIATE_TEST_SUITE_P(All,
                          MediaRecorderHandlerTest,
                          ValuesIn(kMediaRecorderTestParams));
 

third_party/blink/renderer/modules/mediarecorder/video_track_recorder_unittest.cc

@@ -413,7 +413,7 @@ TEST_F(VideoTrackRecorderTest, ReleasesFrame) {
   Mock::VerifyAndClearExpectations(this);
 }
 
-INSTANTIATE_TEST_SUITE_P(,
+INSTANTIATE_TEST_SUITE_P(All,
                          VideoTrackRecorderTest,
                          ::testing::Combine(ValuesIn(kTrackRecorderTestCodec),
                                             ValuesIn(kTrackRecorderTestSize),