getUserMedia: handle the device starting status report.

chrome/test/data/extensions/api_test/desktop_capture/test.js

Index: chrome/test/data/extensions/api_test/desktop_capture/test.js
diff --git a/chrome/test/data/extensions/api_test/desktop_capture/test.js b/chrome/test/data/extensions/api_test/desktop_capture/test.js
index bdf3131048a12721601097d02ba957c1cfdbf0f5..8349380973b1646424519cd1e42b22123b05bc81 100644
--- a/chrome/test/data/extensions/api_test/desktop_capture/test.js
+++ b/chrome/test/data/extensions/api_test/desktop_capture/test.js
@@ -123,27 +123,9 @@ chrome.test.runTests([
     chrome.test.succeed();
   },
 
-  // For the following six, they all request audio track. Based on user's
-  // permission and the source type, it may or may not actually get the audio
-  // track.
-  // In detail:
-  //  1. We cannot support audio for Window share;
-  //  2. We can support audio for Tab share;
-  //  3. We can support audio for Screen share on Windows;
-  //  4. We can support audio for Screen Share on ChromeOS if USE_CRAS is on;
-  //  5. To actually get audio track, user permission is always necessary;
-  //  6. To actually get audio track, getUserMedia() should set audio
-  //     constraint.
-  function tabShareWithAudioPermissionGetStream() {
-    chrome.desktopCapture.chooseDesktopMedia(
-        ["tab", "audio"], onPickerResult.bind(undefined, 1));
-  },
-
-  function windowShareWithAudioPermissionGetStream() {
-    chrome.desktopCapture.chooseDesktopMedia(
-        ["window", "audio"], onPickerResult.bind(undefined, 0));
-  },
-
+  // Only screenShare can be tested as below, because "chooseDesktopMedia" will
+  // return fake source id to tab/windowShare, with which tab/window catpure
+  // can't be started successfully.
   function screenShareWithAudioPermissionGetStream() {
     chrome.desktopCapture.chooseDesktopMedia(
         ["screen", "audio"],
@@ -151,16 +133,6 @@ chrome.test.runTests([
                             expected_audio_tracks_for_screen_share));
   },
 
-  function tabShareWithoutAudioPermissionGetStream() {
-    chrome.desktopCapture.chooseDesktopMedia(
-        ["tab", "audio"], onPickerResult.bind(undefined, 0));
-  },
-
-  function windowShareWithoutAudioPermissionGetStream() {
-    chrome.desktopCapture.chooseDesktopMedia(
-        ["window", "audio"], onPickerResult.bind(undefined, 0));
-  },
-
   function screenShareWithoutAudioPermissionGetStream() {
     chrome.desktopCapture.chooseDesktopMedia(
         ["screen", "audio"], onPickerResult.bind(undefined, 0));