Update comments in //extensions about BrowserContextKeyed_Base_Factory.

These comments that say "BrowserContextKeyed_Base_Factory" are outdated
and should refer to "BrowserContextKeyed_Service_Factory" instead.

Bug: 937770
Change-Id: Ib851fcf251c064a59bdb79d5cf718712654a602c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574422Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652283}

extensions/browser/api/display_source/display_source_event_router_factory.h

@@ -24,7 +24,7 @@ class DisplaySourceEventRouterFactory
   static DisplaySourceEventRouterFactory* GetInstance();
 
  protected:
-  // BrowserContextKeyedBaseFactory overrides:
+  // BrowserContextKeyedServiceFactory overrides:
   content::BrowserContext* GetBrowserContextToUse(
       content::BrowserContext* context) const override;
   bool ServiceIsCreatedWithBrowserContext() const override;

extensions/browser/api/idle/idle_manager_factory.h

@@ -27,7 +27,7 @@ class IdleManagerFactory : public BrowserContextKeyedServiceFactory {
   IdleManagerFactory();
   ~IdleManagerFactory() override;
 
-  // BrowserContextKeyedBaseFactory implementation.
+  // BrowserContextKeyedServiceFactory implementation.
   KeyedService* BuildServiceInstanceFor(
       content::BrowserContext* context) const override;
   content::BrowserContext* GetBrowserContextToUse(

extensions/browser/api/networking_config/networking_config_service_factory.h

@@ -29,7 +29,7 @@ class NetworkingConfigServiceFactory
   NetworkingConfigServiceFactory();
   ~NetworkingConfigServiceFactory() override;
 
-  // BrowserContextKeyedBaseFactory
+  // BrowserContextKeyedServiceFactory
   KeyedService* BuildServiceInstanceFor(
       content::BrowserContext* context) const override;
   content::BrowserContext* GetBrowserContextToUse(

extensions/browser/api/networking_private/networking_private_event_router_factory.h

@@ -28,7 +28,7 @@ class NetworkingPrivateEventRouterFactory
   static NetworkingPrivateEventRouterFactory* GetInstance();
 
  protected:
-  // BrowserContextKeyedBaseFactory overrides:
+  // BrowserContextKeyedServiceFactory overrides:
   content::BrowserContext* GetBrowserContextToUse(
       content::BrowserContext* context) const override;
   bool ServiceIsCreatedWithBrowserContext() const override;

extensions/browser/browser_context_keyed_api_factory.h

@@ -19,13 +19,13 @@ class BrowserContextKeyedAPIFactory;
 
 // Instantiations of BrowserContextKeyedAPIFactory should use this base class
 // and also define a static const char* service_name() function (used in the
-// BrowserContextKeyedBaseFactory constructor). These fields should
+// BrowserContextKeyedServiceFactory constructor). These fields should
 // be accessible to the BrowserContextKeyedAPIFactory for the service.
 class BrowserContextKeyedAPI : public KeyedService {
  protected:
   // Defaults for flags that control BrowserContextKeyedAPIFactory behavior.
   // These can be overridden by subclasses to change that behavior.
-  // See BrowserContextKeyedBaseFactory for usage.
+  // See BrowserContextKeyedServiceFactory for usage.
 
   // These flags affect what instance is returned when Get() is called
   // on an incognito profile. By default, it returns NULL. If
@@ -36,7 +36,7 @@ class BrowserContextKeyedAPI : public KeyedService {
   static const bool kServiceHasOwnInstanceInIncognito = false;
 
   // If set to false, don't start the service at BrowserContext creation time.
-  // (The default differs from the BrowserContextKeyedBaseFactory default,
+  // (The default differs from the BrowserContextKeyedServiceFactory default,
   // because historically, BrowserContextKeyedAPIs often do tasks at startup.)
   static const bool kServiceIsCreatedWithBrowserContext = true;
 
@@ -137,7 +137,7 @@ class BrowserContextKeyedAPIFactory : public BrowserContextKeyedServiceFactory {
     return new T(context);
   }
 
-  // BrowserContextKeyedBaseFactory implementation.
+  // BrowserContextKeyedServiceFactory implementation.
   // These can be effectively overridden with template specializations.
   content::BrowserContext* GetBrowserContextToUse(
       content::BrowserContext* context) const override {