Don't check for USE_CREDENTIALS permission on Android M.

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

Index: base/android/java/src/org/chromium/base/BuildInfo.java
diff --git a/base/android/java/src/org/chromium/base/BuildInfo.java b/base/android/java/src/org/chromium/base/BuildInfo.java
index 54f611d5092ea4595f5d07b6345952d039bd144f..ce262f41d2ee4a2dd141c91d794ce8a132d6b202 100644
--- a/base/android/java/src/org/chromium/base/BuildInfo.java
+++ b/base/android/java/src/org/chromium/base/BuildInfo.java
@@ -10,6 +10,7 @@ import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Build;
+import android.text.TextUtils;
 import android.util.Log;
 
 /**
@@ -122,4 +123,13 @@ public class BuildInfo {
     public static int getSdkInt() {
         return Build.VERSION.SDK_INT;
     }
+
+    /**
+     * @return Whether the Android build is M or later.
+     */
+    public static boolean isMncOrLater() {
+        // TODO(bauerb): Update this once the SDK is updated.
+        return Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1
+                 || TextUtils.equals("MNC", Build.VERSION.CODENAME);
+    }
 }