Avoid using Pickle::WriteSize(), which writes an architecture-dependent amount

chrome/browser/ui/views/extensions/browser_action_drag_data_unittest.cc

 // Copyright (c) 2011 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 "base/pickle.h"
 #include "chrome/browser/ui/views/extensions/browser_action_drag_data.h"
 #include "chrome/test/base/testing_profile.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/dragdrop/os_exchange_data.h"
@@ skipping 24 matching lines @@
 
 TEST_F(BrowserActionDragDataTest, BrowserActionDragDataFormat) {
   TestingProfile profile;
   Profile* profile_ptr = &profile;
   profile.SetID(L"id");
 
   const std::string extension_id = "42";
   Pickle pickle;
   pickle.WriteBytes(&profile_ptr, sizeof(&profile));
   pickle.WriteString(extension_id);
-  pickle.WriteInt(42);
+  pickle.WriteUInt64(42);
 
   ui::OSExchangeData data;
   data.SetPickledData(BrowserActionDragData::GetBrowserActionCustomFormat(),
                       pickle);
 
   BrowserActionDragData drag_data;
   EXPECT_TRUE(drag_data.Read(ui::OSExchangeData(CloneProvider(data))));
   ASSERT_TRUE(drag_data.IsFromProfile(profile.GetOriginalProfile()));
   ASSERT_STREQ(extension_id.c_str(), drag_data.id().c_str());
   ASSERT_EQ(42, drag_data.index());
 }