Convert ARRAYSIZE_UNSAFE -> arraysize in content/.

content/shell/renderer/test_runner/mock_web_user_media_client.cc

 // 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 "content/shell/renderer/test_runner/mock_web_user_media_client.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "content/shell/renderer/test_runner/mock_constraints.h"
 #include "content/shell/renderer/test_runner/web_test_delegate.h"
@@ skipping 206 matching lines @@
       "group1",
     },
     {
       "device3",
       WebMediaDeviceInfo::MediaDeviceKindVideoInput,
       "Build-in webcam",
       "group2",
     },
   };
 
-  WebVector<WebMediaDeviceInfo> devices(ARRAYSIZE_UNSAFE(test_devices));
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_devices); ++i) {
+  WebVector<WebMediaDeviceInfo> devices(arraysize(test_devices));
+  for (size_t i = 0; i < arraysize(test_devices); ++i) {
     devices[i].initialize(WebString::fromUTF8(test_devices[i].device_id),
                           test_devices[i].kind,
                           WebString::fromUTF8(test_devices[i].label),
                           WebString::fromUTF8(test_devices[i].group_id));
   }
 
   delegate_->PostTask(new MediaDevicesRequestTask(this, request, devices));
 }
 
 void MockWebUserMediaClient::cancelMediaDevicesRequest(
@@ skipping 15 matching lines @@
       WebSourceInfo::VideoFacingModeNone,
     },
     {
       "device2",
       WebSourceInfo::SourceKindVideo,
       "Build-in webcam",
       WebSourceInfo::VideoFacingModeEnvironment,
     },
   };
 
-  WebVector<WebSourceInfo> sources(ARRAYSIZE_UNSAFE(test_sources));
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_sources); ++i) {
+  WebVector<WebSourceInfo> sources(arraysize(test_sources));
+  for (size_t i = 0; i < arraysize(test_sources); ++i) {
   sources[i].initialize(WebString::fromUTF8(test_sources[i].id),
                         test_sources[i].kind,
                         WebString::fromUTF8(test_sources[i].label),
                         test_sources[i].facing);
   }
 
   delegate_->PostTask(new SourcesRequestTask(this, request, sources));
 }
 
 }  // namespace content