ChromeOS: Disable ARC when incompatible filesystem is detected.

chrome/browser/chromeos/arc/arc_util.h

Index: chrome/browser/chromeos/arc/arc_util.h
diff --git a/chrome/browser/chromeos/arc/arc_util.h b/chrome/browser/chromeos/arc/arc_util.h
index 15559694da7db2b2e8c3edab12a1849fd58482f2..4083b075aa09aec10c3839ece2a1a6098532ad30 100644
--- a/chrome/browser/chromeos/arc/arc_util.h
+++ b/chrome/browser/chromeos/arc/arc_util.h
@@ -13,6 +13,10 @@
 
 class Profile;
 
+namespace base {
+class FilePath;
+}
+
 namespace arc {
 
 // Returns true if ARC is allowed to run for the given profile.
@@ -61,6 +65,9 @@ void SetArcPlayStoreEnabledForProfile(Profile* profile, bool enabled);
 // ArcBackupRestoreEnabled and ArcLocationServiceEnabled) are managed.
 bool AreArcAllOptInPreferencesManagedForProfile(const Profile* profile);
 
+// Returns whether ARC can run on the filesystem mounted at |path|.

[xiyuan, 2017/04/03 16:20:49]

nit: Document this function needs to access file system and should not run on UI
thread. And maybe add a DCHECK ?

[kinaba, 2017/04/04 04:13:56]

Added documentation, and added AssertIOAllowed()

+bool IsArcCompatibleFilesystem(const base::FilePath& path);
+
 }  // namespace arc
 
 #endif  // CHROME_BROWSER_CHROMEOS_ARC_ARC_UTIL_H_