Fix strict mode violation in TabPersistentStore.cleanupPersistentData()

base/android/java/src/org/chromium/base/ThreadUtils.java

Index: base/android/java/src/org/chromium/base/ThreadUtils.java
diff --git a/base/android/java/src/org/chromium/base/ThreadUtils.java b/base/android/java/src/org/chromium/base/ThreadUtils.java
index ef2887acd0c97e5c8ca97beb489c1dbe50302d98..107559b15a2269eb768a9c4fc403ea3f20c396dc 100644
--- a/base/android/java/src/org/chromium/base/ThreadUtils.java
+++ b/base/android/java/src/org/chromium/base/ThreadUtils.java
@@ -193,6 +193,14 @@ public class ThreadUtils {
     }
 
     /**
+     * Asserts that the current thread is running on a thread dedicated to IO.
+     */
+    public static void assertOnFileThread() {
+        // TODO(agrieve): May want to dedicate a thread(pool) to IO (or join native's File thread).

[gone, 2016/02/18 17:45:35]

nit: Until it's actually a dedicated thread, maybe assertOnBackgroundThread?

[agrieve, 2016/02/23 21:28:38]

Reverted for now. Makes sense though.

+        assert !runningOnUiThread();
+    }
+
+    /**
      * @return true iff the current thread is the main (UI) thread.
      */
     public static boolean runningOnUiThread() {