Provide an overload to WebView::create that does not require a WebViewClient.

media/blink/resource_multibuffer_data_provider_unittest.cc

Index: media/blink/resource_multibuffer_data_provider_unittest.cc
diff --git a/media/blink/resource_multibuffer_data_provider_unittest.cc b/media/blink/resource_multibuffer_data_provider_unittest.cc
index dfb3ebf50d2b233cfca2090f3cb753df984ffdb9..ee9b7c4440d46a46ef8a962e8a0eaa9d74eccbde 100644
--- a/media/blink/resource_multibuffer_data_provider_unittest.cc
+++ b/media/blink/resource_multibuffer_data_provider_unittest.cc
@@ -67,7 +67,7 @@ static bool CorrectAcceptEncoding(const blink::WebURLRequest& request) {
 class ResourceMultiBufferDataProviderTest : public testing::Test {
  public:
   ResourceMultiBufferDataProviderTest()
-      : view_(WebView::create(nullptr, blink::WebPageVisibilityStateVisible)) {
+      : view_(WebView::create(blink::WebPageVisibilityStateVisible)) {
     WebLocalFrame* frame = WebLocalFrame::create(
         blink::WebTreeScopeType::Document, &client_, nullptr, nullptr);
     view_->setMainFrame(frame);