Make ExceptionState parameter of ContainerNode::querySelector() as an optional parameter

third_party/WebKit/Source/core/html/shadow/MediaControlsTest.cpp

 // Copyright 2015 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.
 
 #include "core/html/shadow/MediaControls.h"
 
 #include "core/HTMLNames.h"
 #include "core/css/StylePropertySet.h"
 #include "core/dom/Document.h"
 #include "core/dom/ElementTraversal.h"
@@ skipping 44 matching lines @@
 } // namespace
 
 class MediaControlsTest : public testing::Test {
 protected:
     virtual void SetUp()
     {
         m_pageHolder = DummyPageHolder::create(IntSize(800, 600));
         Document& document = this->document();
 
         document.write("<video>");
-        HTMLVideoElement& video = toHTMLVideoElement(*document.querySelector("video", ASSERT_NO_EXCEPTION));
+        HTMLVideoElement& video = toHTMLVideoElement(*document.querySelector("video"));
         m_mediaControls = video.mediaControls();
 
         // If scripts are not enabled, controls will always be shown.
         m_pageHolder->frame().settings()->setScriptEnabled(true);
     }
 
     void simulateRouteAvailabe()
     {
         m_mediaControls->mediaElement().remoteRouteAvailabilityChanged(true);
     }
@@ skipping 112 matching lines @@
     mediaControls().mediaElement().setBooleanAttribute(HTMLNames::disableremoteplaybackAttr, true);
     simulateRouteAvailabe();
     ASSERT_FALSE(isElementVisible(*castOverlayButton));
 
     mediaControls().mediaElement().setBooleanAttribute(HTMLNames::disableremoteplaybackAttr, false);
     mediaControls().reset();
     ASSERT_TRUE(isElementVisible(*castOverlayButton));
 }
 
 } // namespace blink