Add stub implementations to new WebViewDelegate methods.

android_webview/glue/java/src/com/android/webview/chromium/WebViewChromium.java

Index: android_webview/glue/java/src/com/android/webview/chromium/WebViewChromium.java
diff --git a/android_webview/glue/java/src/com/android/webview/chromium/WebViewChromium.java b/android_webview/glue/java/src/com/android/webview/chromium/WebViewChromium.java
index b9d914ee6e10f76cf3b9d98a3fef572352c2b870..f347d766e7ac1058295b4d006b85ebd3bcdc4eb7 100644
--- a/android_webview/glue/java/src/com/android/webview/chromium/WebViewChromium.java
+++ b/android_webview/glue/java/src/com/android/webview/chromium/WebViewChromium.java
@@ -2099,6 +2099,18 @@ class WebViewChromium implements WebViewProvider, WebViewProvider.ScrollDelegate
         mAwContents.setLayerType(layerType, paint);
     }
 
+    // Overrides method added to WebViewProvider.ViewDelegate interface
+    // (not called in M and below)
+    public Handler getHandler(Handler originalHandler) {
+        return originalHandler;
+    }
+
+    // Overrides method added to WebViewProvider.ViewDelegate interface
+    // (not called in M and below)
+    public View findFocus(View originalFocusedView) {
+        return originalFocusedView;
+    }
+
     // Remove from superclass
     public void preDispatchDraw(Canvas canvas) {
         // TODO(leandrogracia): remove this method from WebViewProvider if we think