Rename kDisableGestureRequirementForMediaPlayback and make it a test-only flag.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 07a8c5963af3cd0050da6dbef93ec8a424c5c93d..fa94e2c9f701904c8eb8867e322b08ed9dfddad1 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1447,11 +1447,6 @@ const FeatureEntry kFeatureEntries[] = {
     {"default-tile-height", flag_descriptions::kDefaultTileHeightName,
      flag_descriptions::kDefaultTileHeightDescription, kOsAll,
      MULTI_VALUE_TYPE(kDefaultTileHeightChoices)},
-    {"disable-gesture-requirement-for-media-playback",

[DaleCurtis, 2017/04/26 19:39:20]

I think you should keep this, otherwise it prevents anyone from doing testing on
Android without the ability to set command line flags.

[mlamouri (slow - plz ping), 2017/04/26 22:13:47]

The autoplay policy dropdown should be enough for testing on Android, right?

[DaleCurtis, 2017/04/26 22:37:43]

Ah right, yes we don't need two of these.

-     flag_descriptions::kGestureRequirementForMediaPlaybackName,
-     flag_descriptions::kGestureRequirementForMediaPlaybackDescription, kOsAll,
-     SINGLE_DISABLE_VALUE_TYPE(
-         switches::kDisableGestureRequirementForMediaPlayback)},
 #if defined(OS_CHROMEOS)
     {"enable-virtual-keyboard", flag_descriptions::kVirtualKeyboardName,
      flag_descriptions::kVirtualKeyboardDescription, kOsCrOS,