Replace usage of WebVector::isEmpty with WebVector::empty().

third_party/WebKit/Source/modules/encryptedmedia/MediaKeySystemAccess.cpp

 // Copyright 2014 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 "modules/encryptedmedia/MediaKeySystemAccess.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
@@ skipping 104 matching lines @@
     : m_keySystem(keySystem), m_access(std::move(access)) {}
 
 MediaKeySystemAccess::~MediaKeySystemAccess() {}
 
 void MediaKeySystemAccess::getConfiguration(
     MediaKeySystemConfiguration& result) {
   WebMediaKeySystemConfiguration configuration = m_access->getConfiguration();
 
   // |initDataTypes|, |audioCapabilities|, and |videoCapabilities| can only be
   // empty if they were not present in the requested configuration.
-  if (!configuration.initDataTypes.isEmpty())
+  if (!configuration.initDataTypes.empty())
     result.setInitDataTypes(convertInitDataTypes(configuration.initDataTypes));
-  if (!configuration.audioCapabilities.isEmpty())
+  if (!configuration.audioCapabilities.empty())
     result.setAudioCapabilities(
         convertCapabilities(configuration.audioCapabilities));
-  if (!configuration.videoCapabilities.isEmpty())
+  if (!configuration.videoCapabilities.empty())
     result.setVideoCapabilities(
         convertCapabilities(configuration.videoCapabilities));
 
   // |distinctiveIdentifier|, |persistentState|, and |sessionTypes| are always
   // set by requestMediaKeySystemAccess().
   result.setDistinctiveIdentifier(
       convertMediaKeysRequirement(configuration.distinctiveIdentifier));
   result.setPersistentState(
       convertMediaKeysRequirement(configuration.persistentState));
   result.setSessionTypes(convertSessionTypes(configuration.sessionTypes));
@@ skipping 23 matching lines @@
   //     (Done if completeWithException() called).
   m_access->createContentDecryptionModule(helper->result());
 
   // 3. Return promise.
   return promise;
 }
 
 DEFINE_TRACE(MediaKeySystemAccess) {}
 
 }  // namespace blink