Revert "Disable all WebRtcBrowserTests on ASan"

This reverts commit 6d582d18.

Reason for revert: The leaks are not caused by WebRTC code,
                   but merely revealed by the tests.
We re-enable those tests: either the leaks have been fixed, or we'll add
a suppression (less drastic than muting the whole WebRTC test suite).

Original change's description:
>Disable all WebRtcBrowserTests on ASan
>
>Many of these tests flakily leak and thus fail on ASan bots.
>
>TBR=phoglund@chromium.org
>
>Bug: 898546
>Change-Id: Icd3cc5dc3a46d0194c807c27b66f7eb902b35794
>Reviewed-on: https://chromium-review.googlesource.com/c/1299161
>Reviewed-by: Marc Treib <treib@chromium.org>
>Commit-Queue: Marc Treib <treib@chromium.org>
>Cr-Commit-Position: refs/heads/master@{#602745}

Bug: chromium:898546
Change-Id: Idccff7827e6381e20060f7116cac75ee2b25018f
Reviewed-on: https://chromium-review.googlesource.com/c/1337626Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Yves Gerey <yvesg@google.com>
Cr-Commit-Position: refs/heads/master@{#608366}

chrome/browser/media/webrtc/webrtc_browsertest.cc

@@ -33,19 +33,12 @@ static const char kKeygenAlgorithmRsa[] =
 static const char kKeygenAlgorithmEcdsa[] =
     "{ name: \"ECDSA\", namedCurve: \"P-256\" }";
 
-// TODO(crbug.com/898546): Many WebRtcBrowserTests flakily leak.
-#if defined(ADDRESS_SANITIZER)
-#define MAYBE_WebRtcBrowserTest DISABLED_WebRtcBrowserTest
-#else
-#define MAYBE_WebRtcBrowserTest WebRtcBrowserTest
-#endif
-
 // Top-level integration test for WebRTC. It always uses fake devices; see
 // WebRtcWebcamBrowserTest for a test that acquires any real webcam on the
 // system.
-class MAYBE_WebRtcBrowserTest : public WebRtcTestBase {
+class WebRtcBrowserTest : public WebRtcTestBase {
  public:
-  MAYBE_WebRtcBrowserTest() : left_tab_(nullptr), right_tab_(nullptr) {}
+  WebRtcBrowserTest() : left_tab_(nullptr), right_tab_(nullptr) {}
 
   void SetUpInProcessBrowserTestFixture() override {
     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
@@ -129,19 +122,19 @@ class MAYBE_WebRtcBrowserTest : public WebRtcTestBase {
   content::WebContents* right_tab_;
 };
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsVP8) {
   RunsAudioVideoWebRTCCallInTwoTabs("VP8");
 }
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsVP9) {
   RunsAudioVideoWebRTCCallInTwoTabs("VP9");
 }
 
 #if BUILDFLAG(RTC_USE_H264)
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsH264) {
   // Only run test if run-time feature corresponding to |rtc_use_h264| is on.
   if (!base::FeatureList::IsEnabled(content::kWebRtcH264WithOpenH264FFmpeg)) {
@@ -164,7 +157,7 @@ IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
 
 #endif  // BUILDFLAG(RTC_USE_H264)
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest, TestWebAudioMediaStream) {
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest, TestWebAudioMediaStream) {
   // This tests against crash regressions for the WebAudio-MediaStream
   // integration.
   ASSERT_TRUE(embedded_test_server()->Start());
@@ -179,14 +172,14 @@ IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest, TestWebAudioMediaStream) {
   ASSERT_FALSE(tab->IsCrashed());
 }
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsOfferRsaAnswerRsa) {
   RunsAudioVideoWebRTCCallInTwoTabs(WebRtcTestBase::kUseDefaultVideoCodec,
                                     false /* prefer_hw_video_codec */,
                                     kKeygenAlgorithmRsa, kKeygenAlgorithmRsa);
 }
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsOfferEcdsaAnswerEcdsa) {
   RunsAudioVideoWebRTCCallInTwoTabs(
       WebRtcTestBase::kUseDefaultVideoCodec, false /* prefer_hw_video_codec */,
@@ -194,32 +187,32 @@ IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_F(
-    MAYBE_WebRtcBrowserTest,
+    WebRtcBrowserTest,
     RunsAudioVideoWebRTCCallInTwoTabsWithClonedCertificateRsa) {
   RunsAudioVideoWebRTCCallInTwoTabsWithClonedCertificate(kKeygenAlgorithmRsa);
 }
 
 IN_PROC_BROWSER_TEST_F(
-    MAYBE_WebRtcBrowserTest,
+    WebRtcBrowserTest,
     RunsAudioVideoWebRTCCallInTwoTabsWithClonedCertificateEcdsa) {
   RunsAudioVideoWebRTCCallInTwoTabsWithClonedCertificate(kKeygenAlgorithmEcdsa);
 }
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsOfferRsaAnswerEcdsa) {
   RunsAudioVideoWebRTCCallInTwoTabs(WebRtcTestBase::kUseDefaultVideoCodec,
                                     false /* prefer_hw_video_codec */,
                                     kKeygenAlgorithmRsa, kKeygenAlgorithmEcdsa);
 }
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsOfferEcdsaAnswerRsa) {
   RunsAudioVideoWebRTCCallInTwoTabs(WebRtcTestBase::kUseDefaultVideoCodec,
                                     false /* prefer_hw_video_codec */,
                                     kKeygenAlgorithmEcdsa, kKeygenAlgorithmRsa);
 }
 
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        RunsAudioVideoWebRTCCallInTwoTabsGetStatsCallback) {
   StartServerAndOpenTabs();
   SetupPeerconnectionWithLocalStream(left_tab_);
@@ -238,7 +231,7 @@ IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
 #define MAYBE_RunsAudioVideoWebRTCCallInTwoTabsGetStatsPromise \
   RunsAudioVideoWebRTCCallInTwoTabsGetStatsPromise
 #endif
-IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
+IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
                        MAYBE_RunsAudioVideoWebRTCCallInTwoTabsGetStatsPromise) {
   StartServerAndOpenTabs();
   SetupPeerconnectionWithLocalStream(left_tab_);
@@ -262,7 +255,7 @@ IN_PROC_BROWSER_TEST_F(MAYBE_WebRtcBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_F(
-    MAYBE_WebRtcBrowserTest,
+    WebRtcBrowserTest,
     RunsAudioVideoWebRTCCallInTwoTabsEmitsGatheringStateChange) {
   StartServerAndOpenTabs();
   SetupPeerconnectionWithLocalStream(left_tab_);