Adding show profile switcher field trial.

chrome/browser/profiles/profile_manager.cc

 // Copyright (c) 2012 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 <set>
 
 #include "chrome/browser/profiles/profile_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1007 matching lines @@
   }
 
   QueueProfileDirectoryForDeletion(profile_dir);
   cache.DeleteProfileFromCache(profile_dir);
 
   ProfileMetrics::LogNumberOfProfiles(this,
                                       ProfileMetrics::DELETE_PROFILE_EVENT);
 }
 
 // static
+void ProfileManager::ForceMultipleProfilesForTests(bool forcedValue) {
+  is_multiple_profiles_forced_ = true;
+  multiple_profiles_forced_value_ = forcedValue;
+}
+
+// static
+void ProfileManager::UnforceMultipleProfilesForTests() {
+  is_multiple_profiles_forced_ = false;
+}
+
+// static
 bool ProfileManager::IsMultipleProfilesEnabled() {
+  if (is_multiple_profiles_forced_)

[sail, 2013/01/31 17:15:23]

I think this should move to the very bottom

[jwd, 2013/01/31 19:26:11]

See new comment and response.

+    return multiple_profiles_forced_value_;
+
 #if defined(OS_ANDROID)
   return false;
 #endif
 #if defined(OS_CHROMEOS)
   if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kMultiProfiles))
     return false;
 #endif
 #if defined(ENABLE_MANAGED_USERS)
   if (ManagedMode::IsInManagedMode())
     return false;
@@ skipping 48 matching lines @@
 ProfileManager::ProfileInfo::ProfileInfo(
     Profile* profile,
     bool created)
     : profile(profile),
       created(created) {
 }
 
 ProfileManager::ProfileInfo::~ProfileInfo() {
   ProfileDestroyer::DestroyProfileWhenAppropriate(profile.release());
 }
+
+// static
+bool ProfileManager::is_multiple_profiles_forced_ = false;
+
+// static
+bool ProfileManager::multiple_profiles_forced_value_ = true;