Whitelist known StrictMode violations to be fixed.

chrome/android/java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java

Index: chrome/android/java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java b/chrome/android/java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java
index 8673433d364f8b3d55cd8430bc62d4697a1b520d..81feaa909ac1511b3d4dd9f2c1620bd1adea379a 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/externalauth/ExternalAuthUtils.java
@@ -12,6 +12,7 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Binder;
+import android.os.StrictMode;
 import android.text.TextUtils;
 
 import com.google.android.gms.common.ConnectionResult;
@@ -238,7 +239,14 @@ public class ExternalAuthUtils {
      * @return The code produced by calling the external code
      */
     protected int checkGooglePlayServicesAvailable(final Context context) {
-        return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(context);
+        // Temporarily allowing disk access. TODO: Fix. See http://crbug.com/577190
+        StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
+        StrictMode.allowThreadDiskWrites();
+        try {
+            return GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(context);
+        } finally {
+            StrictMode.setThreadPolicy(oldPolicy);
+        }
     }
 
     /**