Use SuppressFBWarnings to suppress findbugs warnings

base/android/java/src/org/chromium/base/annotations/SuppressFBWarnings.java

Index: base/android/java/src/org/chromium/base/annotations/SuppressFBWarnings.java
diff --git a/base/android/java/src/org/chromium/base/annotations/SuppressFBWarnings.java b/base/android/java/src/org/chromium/base/annotations/SuppressFBWarnings.java
new file mode 100644
index 0000000000000000000000000000000000000000..89068ac9418bfb0743e472ab04bd3d0921c2aece
--- /dev/null
+++ b/base/android/java/src/org/chromium/base/annotations/SuppressFBWarnings.java
@@ -0,0 +1,20 @@
+// Copyright 2014 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.
+
+package org.chromium.base.annotations;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ *  @SuppressFBWarnings is used to suppress FindBugs warnings.
+ *
+ *  The long name of FindBugs warnings can be found at
+ *  http://findbugs.sourceforge.net/bugDescriptions.html
+ */
+@Retention(RetentionPolicy.CLASS)
+public @interface SuppressFBWarnings {
+    String[] value() default {};
+    String justification() default "";
+}