Fix android_webview FindBugs warnings revealed by N sdk

android_webview/javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java
index 502deef1c22d31585a774cefc657208525aee2e7..f720843fe50048ec999b636e6e259ff7a8657b76 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/AwJavaBridgeTest.java
@@ -8,6 +8,7 @@ import android.test.suitebuilder.annotation.SmallTest;
 import android.webkit.JavascriptInterface;
 
 import org.chromium.android_webview.AwContents;
+import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.base.test.util.Feature;
 
 /**
@@ -32,6 +33,7 @@ public class AwJavaBridgeTest extends AwTestBase {
         final AwTestContainerView view2 = createAwTestContainerViewOnMainSync(client2);
         final AwContents awContents = mTestContainerView.getAwContents();
 
+        @SuppressFBWarnings("UMAC_UNCALLABLE_METHOD_OF_ANONYMOUS_CLASS")
         class Test {
             @JavascriptInterface
             public void destroy() {
@@ -87,6 +89,7 @@ public class AwJavaBridgeTest extends AwTestBase {
             Test(int value) {
                 mValue = value;
             }
+            @SuppressFBWarnings("UMAC_UNCALLABLE_METHOD_OF_ANONYMOUS_CLASS")
             @JavascriptInterface
             public int getValue() {
                 return mValue;
@@ -123,6 +126,7 @@ public class AwJavaBridgeTest extends AwTestBase {
             Test(int value) {
                 mValue = value;
             }
+            @SuppressFBWarnings("UMAC_UNCALLABLE_METHOD_OF_ANONYMOUS_CLASS")
             @JavascriptInterface
             public int getValue() {
                 return mValue;