Fix autoplay during prerendering for media elements on Android.

chrome/browser/media/defer_background_media_browsertest.cc

Index: chrome/browser/media/defer_background_media_browsertest.cc
diff --git a/chrome/browser/media/defer_background_media_browsertest.cc b/chrome/browser/media/defer_background_media_browsertest.cc
index daa3e6b8dc5863f32d03a945af821eb89ee8c8c8..d30178c649a5745c8126cc0a1b0b387953496c8e 100644
--- a/chrome/browser/media/defer_background_media_browsertest.cc
+++ b/chrome/browser/media/defer_background_media_browsertest.cc
@@ -2,21 +2,28 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
+#include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "media/base/test_data_util.h"
 
-// TODO(dalecurtis): Android does not correctly defer media today, fix and
-// enable this test (needs disable of user gesture).  http://crbug.com/522157
-#if !defined(OS_ANDROID)
-typedef InProcessBrowserTest MediaBrowserTest;
+class DeferredMediaBrowserTest : public InProcessBrowserTest {
+ public:
+#if defined(OS_ANDROID)
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    command_line->AppendSwitch(
+        switches::kDisableGestureRequirementForMediaPlayback);
+  }
+#endif
+};
 
-IN_PROC_BROWSER_TEST_F(MediaBrowserTest, BackgroundMediaIsDeferred) {
+IN_PROC_BROWSER_TEST_F(DeferredMediaBrowserTest, BackgroundMediaIsDeferred) {
   // Navigate to a video file, which would autoplay in the foreground, but won't
   // in the background due to deferred media loading for hidden tabs.
   ui_test_utils::NavigateToURLWithDisposition(
@@ -57,4 +64,3 @@ IN_PROC_BROWSER_TEST_F(MediaBrowserTest, BackgroundMediaIsDeferred) {
   watcher.AlsoWaitForTitle(ended_str);
   EXPECT_EQ(playing_str, watcher.WaitAndGetTitle());
 }
-#endif  // !defined(OS_ANDROID)