Make WebViewSigninClientFactory return a IOSWebviewSigninClient.

It used to return a pointer to the base class SigninClient. Since this
is a factory specific for //ios/web_view, it makes sense to return the
//ios/web_view specific subclass.

Bug: 
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I27d726d7dab7e5ef2193928a2ffd0796cee0351c
Reviewed-on: https://chromium-review.googlesource.com/744738Reviewed-by: Hiroshi Ichikawa <ichikawa@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Commit-Queue: John Wu <jzw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#513169}

ios/web_view/internal/signin/web_view_account_fetcher_service_factory.cc

@@ -11,6 +11,7 @@
 #include "components/keyed_service/ios/browser_state_dependency_manager.h"
 #include "components/signin/core/browser/account_fetcher_service.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
+#include "ios/web_view/internal/signin/ios_web_view_signin_client.h"
 #include "ios/web_view/internal/signin/web_view_account_tracker_service_factory.h"
 #include "ios/web_view/internal/signin/web_view_oauth2_token_service_factory.h"
 #include "ios/web_view/internal/signin/web_view_signin_client_factory.h"

ios/web_view/internal/signin/web_view_account_tracker_service_factory.cc

@@ -10,6 +10,7 @@
 #include "base/memory/singleton.h"
 #include "components/keyed_service/ios/browser_state_dependency_manager.h"
 #include "components/signin/core/browser/account_tracker_service.h"
+#include "ios/web_view/internal/signin/ios_web_view_signin_client.h"
 #include "ios/web_view/internal/signin/web_view_signin_client_factory.h"
 #include "ios/web_view/internal/web_view_browser_state.h"
 

ios/web_view/internal/signin/web_view_gaia_cookie_manager_service_factory.cc

@@ -11,6 +11,7 @@
 #include "components/signin/core/browser/gaia_cookie_manager_service.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "google_apis/gaia/gaia_constants.h"
+#include "ios/web_view/internal/signin/ios_web_view_signin_client.h"
 #include "ios/web_view/internal/signin/web_view_oauth2_token_service_factory.h"
 #include "ios/web_view/internal/signin/web_view_signin_client_factory.h"
 #include "ios/web_view/internal/web_view_browser_state.h"

ios/web_view/internal/signin/web_view_oauth2_token_service_factory.mm

@@ -11,6 +11,7 @@
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/ios/browser/profile_oauth2_token_service_ios_delegate.h"
 #import "ios/web_view/internal/cwv_web_view_configuration_internal.h"
+#include "ios/web_view/internal/signin/ios_web_view_signin_client.h"
 #include "ios/web_view/internal/signin/web_view_account_tracker_service_factory.h"
 #include "ios/web_view/internal/signin/web_view_profile_oauth2_token_service_ios_provider_impl.h"
 #include "ios/web_view/internal/signin/web_view_signin_client_factory.h"

ios/web_view/internal/signin/web_view_signin_client_factory.cc

@@ -18,9 +18,9 @@
 namespace ios_web_view {
 
 // static
-SigninClient* WebViewSigninClientFactory::GetForBrowserState(
+IOSWebViewSigninClient* WebViewSigninClientFactory::GetForBrowserState(
     ios_web_view::WebViewBrowserState* browser_state) {
-  return static_cast<SigninClient*>(
+  return static_cast<IOSWebViewSigninClient*>(
       GetInstance()->GetServiceForBrowserState(browser_state, true));
 }
 

ios/web_view/internal/signin/web_view_signin_client_factory.h

@@ -15,7 +15,7 @@ template <typename T>
 struct DefaultSingletonTraits;
 }  // namespace base
 
-class SigninClient;
+class IOSWebViewSigninClient;
 
 namespace ios_web_view {
 class WebViewBrowserState;
@@ -24,7 +24,7 @@ class WebViewBrowserState;
 // a browser state.
 class WebViewSigninClientFactory : public BrowserStateKeyedServiceFactory {
  public:
-  static SigninClient* GetForBrowserState(
+  static IOSWebViewSigninClient* GetForBrowserState(
       ios_web_view::WebViewBrowserState* browser_state);
   static WebViewSigninClientFactory* GetInstance();
 

ios/web_view/internal/signin/web_view_signin_manager_factory.cc

@@ -14,6 +14,7 @@
 #include "components/signin/core/browser/signin_manager.h"
 #include "components/signin/core/browser/signin_pref_names.h"
 #include "ios/web_view/internal/app/application_context.h"
+#include "ios/web_view/internal/signin/ios_web_view_signin_client.h"
 #include "ios/web_view/internal/signin/web_view_account_tracker_service_factory.h"
 #include "ios/web_view/internal/signin/web_view_gaia_cookie_manager_service_factory.h"
 #include "ios/web_view/internal/signin/web_view_oauth2_token_service_factory.h"