Add flags to enable screen orientation lock for fullscreen video on Android.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 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 "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 2083 matching lines @@
      IDS_FLAGS_CROSS_PROCESS_GUEST_VIEW_ISOLATION_DESCRIPTION, kOsDesktop,
      FEATURE_VALUE_TYPE(features::kGuestViewCrossProcessFrames)},
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
     {"media-remoting", IDS_FLAGS_MEDIA_REMOTING_NAME,
      IDS_FLAGS_MEDIA_REMOTING_DESCRIPTION, kOsDesktop,
      FEATURE_VALUE_TYPE(features::kMediaRemoting)},
     {"media-remoting-encrypted", IDS_FLAGS_MEDIA_REMOTING_ENCRYPTED_NAME,
      IDS_FLAGS_MEDIA_REMOTING_ENCRYPTED_DESCRIPTION, kOsDesktop,
      FEATURE_VALUE_TYPE(features::kMediaRemotingEncrypted)},
 #endif
+#if defined(OS_ANDROID)
+    {"video-fullscreen-orientation-lock",
+     IDS_FLAGS_VIDEO_FULLSCREEN_ORIENTATION_LOCK_NAME,
+     IDS_FLAGS_VIDEO_FULLSCREEN_ORIENTATION_LOCK_DESCRIPTION, kOsAndroid,
+     FEATURE_VALUE_TYPE(features::kVideoFullscreenOrientationLock)},
+#endif
 
     // NOTE: Adding new command-line switches requires adding corresponding
     // entries to enum "LoginCustomFlags" in histograms.xml. See note in
     // histograms.xml and don't forget to run AboutFlagsHistogramTest unit test.
 };
 
 class FlagsStateSingleton {
  public:
   FlagsStateSingleton()
       : flags_state_(kFeatureEntries, arraysize(kFeatureEntries)) {}
@@ skipping 189 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags