Componentize VersionInfo.

chrome/browser/ui/webui/print_preview/extension_printer_handler_unittest.cc

 // 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 <queue>
 #include <string>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 535 matching lines @@
   scoped_ptr<base::ListValue> original_printers(
       GetJSONAsListValue(kPrinterDescriptionList, &error));
   ASSERT_TRUE(original_printers) << "Error deserializing printers: " << error;
 
   fake_api->TriggerNextGetPrintersCallback(*original_printers, true);
 
   EXPECT_EQ(0u, call_count);
 }
 
 TEST_F(ExtensionPrinterHandlerTest, GetUsbPrinters) {
-  extensions::ScopedCurrentChannel channel(chrome::VersionInfo::CHANNEL_DEV);
+  extensions::ScopedCurrentChannel channel(version_info::Channel::DEV);
 
   scoped_refptr<MockUsbDevice> device0 =
       new MockUsbDevice(0, 0, "Google", "USB Printer", "");
   usb_service_.AddDevice(device0);
   scoped_refptr<MockUsbDevice> device1 =
       new MockUsbDevice(0, 1, "Google", "USB Printer", "");
   usb_service_.AddDevice(device1);
 
   const Extension* extension_1 = env_.MakeExtension(
       *base::test::ParseJson(kExtension1), "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
@@ skipping 451 matching lines @@
       DictionaryBuilder()
           .Set("id", "printer1")
           .Set("name", "Printer 1")
           .Build());
 
   fake_api->TriggerNextUsbPrinterInfoCallback(*original_printer_info);
 
   EXPECT_EQ(0u, call_count);
   EXPECT_FALSE(printer_info.get());
 }