Propagate muted state from MediaStreamAudioSource into JS.

content/browser/webrtc/webrtc_getusermedia_browsertest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
 #include "base/json/json_reader.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/scoped_feature_list.h"
 #include "base/test/trace_event_analyzer.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/trace_event/trace_event_impl.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/browser/webrtc/webrtc_content_browsertest_base.h"
 #include "content/browser/webrtc/webrtc_internals.h"
 #include "content/public/common/content_features.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/public/test/test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "media/audio/audio_manager.h"
+#include "media/audio/fake_audio_input_stream.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "testing/perf/perf_test.h"
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
 using trace_analyzer::TraceAnalyzer;
 using trace_analyzer::Query;
 using trace_analyzer::TraceEventVector;
 
 namespace {
 
 static const char kGetUserMediaAndStop[] = "getUserMediaAndStop";
 static const char kGetUserMediaAndGetStreamUp[] = "getUserMediaAndGetStreamUp";
 static const char kGetUserMediaAndAnalyseAndStop[] =
     "getUserMediaAndAnalyseAndStop";
 static const char kGetUserMediaAndExpectFailure[] =
     "getUserMediaAndExpectFailure";
+static const char kGetUserMediaForAudioMutingTest[] =
+    "getUserMediaForAudioMutingTest";
 static const char kRenderSameTrackMediastreamAndStop[] =
     "renderSameTrackMediastreamAndStop";
 static const char kRenderClonedMediastreamAndStop[] =
     "renderClonedMediastreamAndStop";
 static const char kRenderClonedTrackMediastreamAndStop[] =
     "renderClonedTrackMediastreamAndStop";
 static const char kRenderDuplicatedMediastreamAndStop[] =
     "renderDuplicatedMediastreamAndStop";
 
 // Results returned by JS.
@@ skipping 1385 matching lines @@
   manager->SetGenerateStreamCallbackForTesting(
       base::Bind(&VerifyDisableLocalEcho, true));
   call = GenerateGetUserMediaWithDisableLocalEcho(
       "getUserMediaAndExpectSuccess", "true");
   ExecuteJavascriptAndWaitForOk(call);
 
   manager->SetGenerateStreamCallbackForTesting(
       MediaStreamManager::GenerateStreamTestCallback());
 }
 
+IN_PROC_BROWSER_TEST_F(WebRtcGetUserMediaBrowserTest,
+                       GetAudioStreamAndCheckMutingInitiallyUnmuted) {
+  ASSERT_TRUE(embedded_test_server()->Start());
+
+  GURL url(embedded_test_server()->GetURL("/media/getusermedia.html"));
+  NavigateToURL(shell(), url);
+
+  // Expect stream to initially not be muted
+  media::FakeAudioInputStream::SetMutedState(false);
+  ExecuteJavascriptAndWaitForOk(
+      base::StringPrintf("%s(false);", kGetUserMediaForAudioMutingTest));
+
+  // Mute
+  media::FakeAudioInputStream::SetMutedState(true);
+  EXPECT_EQ("onmute: muted=true, readyState=live",
+            ExecuteJavascriptAndReturnResult(
+                "failTestAfterTimeout('Got no mute event', 1500);"));
+  // Unmute
+  media::FakeAudioInputStream::SetMutedState(false);
+  EXPECT_EQ("onunmute: muted=false, readyState=live",
+            ExecuteJavascriptAndReturnResult(
+                "failTestAfterTimeout('Got no unmute event', 1500);"));
+}
+
+IN_PROC_BROWSER_TEST_F(WebRtcGetUserMediaBrowserTest,
+                       GetAudioStreamAndCheckMutingInitiallyMuted) {
+  ASSERT_TRUE(embedded_test_server()->Start());
+
+  GURL url(embedded_test_server()->GetURL("/media/getusermedia.html"));
+  NavigateToURL(shell(), url);
+
+  // Expect stream to initially be muted
+  media::FakeAudioInputStream::SetMutedState(true);
+  ExecuteJavascriptAndWaitForOk(
+      base::StringPrintf("%s(true);", kGetUserMediaForAudioMutingTest));
+
+  // Unmute
+  media::FakeAudioInputStream::SetMutedState(false);
+  EXPECT_EQ("onunmute: muted=false, readyState=live",
+            ExecuteJavascriptAndReturnResult(
+                "failTestAfterTimeout('Got no unmute event', 1500);"));
+
+  // Mute
+  media::FakeAudioInputStream::SetMutedState(true);
+  EXPECT_EQ("onmute: muted=true, readyState=live",
+            ExecuteJavascriptAndReturnResult(
+                "failTestAfterTimeout('Got no mute event', 1500);"));
+}
+
 }  // namespace content