Add canUpdateLayout & canHandleGestureEvent to WebViewClient.

third_party/WebKit/Source/web/tests/FrameTestHelpers.h

Index: third_party/WebKit/Source/web/tests/FrameTestHelpers.h
diff --git a/third_party/WebKit/Source/web/tests/FrameTestHelpers.h b/third_party/WebKit/Source/web/tests/FrameTestHelpers.h
index 232875b1bbfc39e303d6ee0ee225ea6ffab7920b..e1ae1d021ce2fdf96540be675e9c12e761abcc1f 100644
--- a/third_party/WebKit/Source/web/tests/FrameTestHelpers.h
+++ b/third_party/WebKit/Source/web/tests/FrameTestHelpers.h
@@ -171,6 +171,8 @@ class TestWebViewClient : public WebViewClient {
   void scheduleAnimation() override { m_animationScheduled = true; }
   bool animationScheduled() { return m_animationScheduled; }
   void clearAnimationScheduled() { m_animationScheduled = false; }
+  bool canHandleGestureEvent() override { return true; }
+  bool canUpdateLayout() override { return true; }
 
   // TODO(lfg): This is a temporary method to retrieve the WebWidgetClient,
   // while we refactor WebView to not inherit from Webwidget.