[WebViewShell] Clean-up lint warnings in android_webview/tools/system_webview_shell/apk/

android_webview/tools/system_webview_shell/apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java

Index: android_webview/tools/system_webview_shell/apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java
diff --git a/android_webview/tools/system_webview_shell/apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java b/android_webview/tools/system_webview_shell/apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java
index 6727bbc5051ec12d00ae996e709e19c0791a53c0..33ee51832b8b4dad60fecfc1201da03d8c376d5a 100644
--- a/android_webview/tools/system_webview_shell/apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java
+++ b/android_webview/tools/system_webview_shell/apk/src/org/chromium/webview_shell/WebViewCreateDestroyActivity.java
@@ -61,10 +61,11 @@ public class WebViewCreateDestroyActivity extends Activity {
         webSettings.setLoadWithOverviewMode(true);
 
         sWebView.setWebViewClient(new WebViewClient() {
-                @Override
-                public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                    return false;
-                }
+            @SuppressWarnings("deprecation") // because we support api level 19 and up.
+            @Override
+            public boolean shouldOverrideUrlLoading(WebView view, String url) {
+                return false;
+            }
         });
 
         String url = getUrlFromIntent(intent);