arc: Enable silent PlayStore Sign-In.

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 2046 matching lines @@
      IDS_FLAGS_EXPERIMENTAL_POINTER_EVENT_V1_SPEC_CAPTURING_DESCRIPTION, kOsAll,
      FEATURE_VALUE_TYPE(features::kPointerEventV1SpecCapturing)},
 #if defined(OS_CHROMEOS)
     {"enable-emoji-handwriting-voice-on-ime-menu",
      IDS_FLAGS_ENABLE_EHV_INPUT_NAME, IDS_FLAGS_ENABLE_EHV_INPUT_DESCRIPTION,
      kOsCrOS, FEATURE_VALUE_TYPE(features::kEHVInputOnImeMenu)},
 #endif
     {"enable-gamepad-extensions", IDS_FLAGS_GAMEPAD_EXTENSIONS_NAME,
      IDS_FLAGS_GAMEPAD_EXTENSIONS_DESCRIPTION, kOsAll,
      FEATURE_VALUE_TYPE(features::kGamepadExtensions)},
+#if defined(OS_CHROMEOS)
+    {"arc-use-auth-endpoint", IDS_FLAGS_ARC_USE_AUTH_ENDPOINT_NAME,
+     IDS_FLAGS_ARC_USE_AUTH_ENDPOINT_DESCRIPTION, kOsCrOS,
+     SINGLE_VALUE_TYPE_AND_VALUE(
+       chromeos::switches::kArcUseAuthEndpoint,
+       "https://www-googleapis-staging.sandbox.google.com/oauth2/v4/" \
+       "ExchangeToken")},
+#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)) {}
   ~FlagsStateSingleton() {}
@@ skipping 162 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags