Reland of Use spec-compliant algorithm to select video devices in getUserMedia.

android_webview/javatests/src/org/chromium/android_webview/test/MediaAccessPermissionRequestTest.java

 // 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.
 
 package org.chromium.android_webview.test;
 
 import android.support.test.filters.SmallTest;
 
 import org.chromium.android_webview.AwContents;
 import org.chromium.android_webview.permission.AwPermissionRequest;
 import org.chromium.android_webview.test.util.CommonResources;
 import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.base.test.util.CallbackHelper;
+import org.chromium.base.test.util.CommandLineFlags;
 import org.chromium.base.test.util.DisableIf;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.RetryOnFailure;
+import org.chromium.content.common.ContentSwitches;
 import org.chromium.net.test.util.TestWebServer;
 
 import java.util.concurrent.Callable;
 
 /**
  * Test MediaAccessPermissionRequest.
  */
 public class MediaAccessPermissionRequestTest extends AwTestBase {
     private static class OnPermissionRequestHelper extends CallbackHelper {
         private boolean mCanceled;
@@ skipping 42 matching lines @@
     @Override
     protected void tearDown() throws Exception {
         mTestWebServer.shutdown();
         mTestWebServer = null;
         super.tearDown();
     }
 
     @Feature({"AndroidWebView"})
     @SmallTest
     @DisableIf.Build(sdk_is_greater_than = 22, message = "crbug.com/623921")
+    @CommandLineFlags.Add(ContentSwitches.USE_FAKE_DEVICE_FOR_MEDIA_STREAM)
     @RetryOnFailure
     public void testGrantAccess() throws Throwable {
         final OnPermissionRequestHelper helper = new OnPermissionRequestHelper();
         TestAwContentsClient contentsClient =
                 new TestAwContentsClient() {
                     @Override
                     public void onPermissionRequest(AwPermissionRequest awPermissionRequest) {
                         awPermissionRequest.grant();
                         helper.notifyCalled();
                     }
                 };
         final AwTestContainerView testContainerView =
                 createAwTestContainerViewOnMainSync(contentsClient);
         final AwContents awContents = testContainerView.getAwContents();
         enableJavaScriptOnUiThread(awContents);
         int callCount = helper.getCallCount();
         loadUrlAsync(awContents, mWebRTCPage, null);
         helper.waitForCallback(callCount);
         pollTitleAs("grant", awContents);
     }
 
     @Feature({"AndroidWebView"})
     @SmallTest
     @DisableIf.Build(sdk_is_greater_than = 22, message = "crbug.com/614347")
+    @CommandLineFlags.Add(ContentSwitches.USE_FAKE_DEVICE_FOR_MEDIA_STREAM)
     @RetryOnFailure
     public void testDenyAccess() throws Throwable {
         final OnPermissionRequestHelper helper = new OnPermissionRequestHelper();
         TestAwContentsClient contentsClient =
                 new TestAwContentsClient() {
                     @Override
                     public void onPermissionRequest(AwPermissionRequest awPermissionRequest) {
                         awPermissionRequest.deny();
                         helper.notifyCalled();
                     }
@@ skipping 14 matching lines @@
             @Override
             public Boolean call() throws Exception {
                 return title.equals(getTitleOnUiThread(awContents));
             }
         });
     }
 
     @Feature({"AndroidWebView"})
     @SmallTest
     @DisableIf.Build(sdk_is_greater_than = 22, message = "crbug.com/614347")
+    @CommandLineFlags.Add(ContentSwitches.USE_FAKE_DEVICE_FOR_MEDIA_STREAM)
     @RetryOnFailure
     public void testDenyAccessByDefault() throws Throwable {
         final OnPermissionRequestHelper helper = new OnPermissionRequestHelper();
         TestAwContentsClient contentsClient =
                 new TestAwContentsClient() {
                     @Override
                     public void onPermissionRequest(AwPermissionRequest awPermissionRequest) {
                         // Intentionally do nothing with awPermissionRequest.
                         helper.notifyCalled();
                     }
@@ skipping 17 matching lines @@
             public Boolean call() throws Exception {
                 Runtime.getRuntime().gc();
                 return "deny".equals(getTitleOnUiThread(awContents));
             }
         });
     }
 
     @Feature({"AndroidWebView"})
     @SmallTest
     @DisableIf.Build(sdk_is_greater_than = 22, message = "crbug.com/614347")
+    @CommandLineFlags.Add(ContentSwitches.USE_FAKE_DEVICE_FOR_MEDIA_STREAM)
     @RetryOnFailure
     public void testCancelPermission() throws Throwable {
         final OnPermissionRequestHelper helper = new OnPermissionRequestHelper();
         TestAwContentsClient contentsClient =
                 new TestAwContentsClient() {
                     private AwPermissionRequest mRequest;
                     @Override
                     public void onPermissionRequest(AwPermissionRequest awPermissionRequest) {
                         assertNull(mRequest);
                         mRequest = awPermissionRequest;
@@ skipping 15 matching lines @@
         int callCount = helper.getCallCount();
         loadUrlAsync(awContents, mWebRTCPage, null);
         helper.waitForCallback(callCount);
         callCount = helper.getCallCount();
         // Load the same page again, the previous request should be canceled.
         loadUrlAsync(awContents, mWebRTCPage, null);
         helper.waitForCallback(callCount);
         assertTrue(helper.canceled());
     }
 }