Support new --arc-availability flag.

components/arc/arc_util_unittest.cc

 // Copyright 2017 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 "components/arc/arc_util.h"
 
 #include <memory>
 
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 53 matching lines @@
   EXPECT_FALSE(IsArcAvailable());
 
   {
     ScopedArcFeature feature(true);
     EXPECT_TRUE(IsArcAvailable());
   }
   {
     ScopedArcFeature feature(false);
     EXPECT_FALSE(IsArcAvailable());
   }
+

[Yusuke Sato, 2017/02/02 18:14:06]

can you test "none"?

[hidehiko, 2017/02/03 15:37:42]

Done.

+  // If ARC is installed, IsArcAvailable() should return true when EnableARC
+  // feature is set.
+  command_line->InitFromArgv({"", "--arc-availability=installed"});
+
+  // Not available, by-default, too.
+  EXPECT_FALSE(IsArcAvailable());
+
+  {
+    ScopedArcFeature feature(true);
+    EXPECT_TRUE(IsArcAvailable());
+  }
+  {
+    ScopedArcFeature feature(false);
+    EXPECT_FALSE(IsArcAvailable());
+  }
 }
 
 TEST_F(ArcUtilTest, IsArcAvailable_OfficialSupport) {
   // Regardless of FeatureList, IsArcAvailable() should return true.
   auto* command_line = base::CommandLine::ForCurrentProcess();
   command_line->InitFromArgv({"", "--enable-arc"});
   EXPECT_TRUE(IsArcAvailable());
+
+  command_line->InitFromArgv({"", "--arc-availability=official-support"});
+  EXPECT_TRUE(IsArcAvailable());
 }
 
 // TODO(hidehiko): Add test for IsArcKioskMode().
 // It depends on UserManager, but a utility to inject fake instance is
 // available only in chrome/. To use it in components/, refactoring is needed.
 
 TEST_F(ArcUtilTest, IsArcOptInVerificationDisabled) {
   auto* command_line = base::CommandLine::ForCurrentProcess();
   command_line->InitFromArgv({""});
   EXPECT_FALSE(IsArcOptInVerificationDisabled());
 
   command_line->InitFromArgv({"", "--disable-arc-opt-in-verification"});
   EXPECT_TRUE(IsArcOptInVerificationDisabled());
 }
 
 }  // namespace
 }  // namespace arc