Fix lint issues with AndroidScrollIntegrationTest.java.

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

 // Copyright 2013 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.android_webview.test;
 
 import android.content.Context;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.view.View;
 import android.widget.OverScroller;
 
 import org.chromium.android_webview.AwContents;
 import org.chromium.android_webview.AwScrollOffsetManager;
 import org.chromium.android_webview.test.util.AwTestTouchUtils;
 import org.chromium.android_webview.test.util.CommonResources;
 import org.chromium.android_webview.test.util.JavascriptEventObserver;
 import org.chromium.base.test.util.Feature;
 import org.chromium.content.browser.test.util.CallbackHelper;
 import org.chromium.content_public.browser.GestureStateListener;
 import org.chromium.ui.gfx.DeviceDisplayInfo;
 
+import java.util.Locale;
 import java.util.concurrent.Callable;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
  * Integration tests for synchronous scrolling.
  */
 public class AndroidScrollIntegrationTest extends AwTestBase {
     private static class OverScrollByCallbackHelper extends CallbackHelper {
         int mDeltaX;
@@ skipping 791 matching lines @@
                     (int) Math.ceil(awContents.computeVerticalScrollRange() / oldScale);
 
                 awContents.zoomIn();
 
                 int newScrollRange =
                     awContents.computeVerticalScrollRange() - testContainerView.getHeight();
                 float newScale = awContents.getScale();
                 int newContentHeightApproximation =
                     (int) Math.ceil(awContents.computeVerticalScrollRange() / newScale);
 
-                assertTrue(String.format("Scale range should increase after zoom (%f) > (%f)",
+                assertTrue(String.format(Locale.ENGLISH,
+                        "Scale range should increase after zoom (%f) > (%f)",
                         newScale, oldScale), newScale > oldScale);
-                assertTrue(String.format("Scroll range should increase after zoom (%d) > (%d)",
+                assertTrue(String.format(Locale.ENGLISH,
+                        "Scroll range should increase after zoom (%d) > (%d)",
                         newScrollRange, oldScrollRange), newScrollRange > oldScrollRange);
                 assertEquals(awContents.getContentHeightCss(), oldContentHeightApproximation);
                 assertEquals(awContents.getContentHeightCss(), newContentHeightApproximation);
             }
         });
 
     }
 }