Export a private webstore API to call into the new inline sign-in flow.

components/keyed_service/content/refcounted_browser_context_keyed_service_factory.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 "components/keyed_service/content/refcounted_browser_context_keyed_service_factory.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "components/keyed_service/content/refcounted_browser_context_keyed_service.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/browser_context.h"
 
 void RefcountedBrowserContextKeyedServiceFactory::SetTestingFactory(
     content::BrowserContext* context,
     TestingFactoryFunction testing_factory) {
+  if (!context) {
+    testing_factories_[NULL] = testing_factory;
+    return;
+  }
+
   // Destroying the context may cause us to lose data about whether |context|
   // has our preferences registered on it (since the context object itself
   // isn't dead). See if we need to readd it once we've gone through normal
   // destruction.
   bool add_context = ArePreferencesSetOn(context);
 
   // We have to go through the shutdown and destroy mechanisms because there
   // are unit tests that create a service on a context and then change the
   // testing service mid-test.
   BrowserContextShutdown(context);
@@ skipping 38 matching lines @@
   RefCountedStorage::const_iterator it = mapping_.find(context);
   if (it != mapping_.end())
     return it->second;
 
   // Object not found.
   if (!create)
     return NULL;  // And we're forbidden from creating one.
 
   // Create new object.
   // Check to see if we have a per-BrowserContext testing factory that we should
-  // use instead of default behavior.
+  // use instead of default behavior. Check for a global factory as well.
   scoped_refptr<RefcountedBrowserContextKeyedService> service;
   BrowserContextOverriddenTestingFunctions::const_iterator jt =
       testing_factories_.find(context);
+  if (jt == testing_factories_.end())
+    jt = testing_factories_.find(NULL);
   if (jt != testing_factories_.end()) {
     if (jt->second) {
       if (!context->IsOffTheRecord())
         RegisterUserPrefsOnBrowserContextForTest(context);
       service = jt->second(context);
     }
   } else {
     service = BuildServiceInstanceFor(context);
   }
 
@@ skipping 32 matching lines @@
 
 void RefcountedBrowserContextKeyedServiceFactory::SetEmptyTestingFactory(
     content::BrowserContext* context) {
   SetTestingFactory(context, NULL);
 }
 
 void RefcountedBrowserContextKeyedServiceFactory::CreateServiceNow(
     content::BrowserContext* context) {
   GetServiceForBrowserContext(context, true);
 }