Geolocation: extract ContentBrowserClient methods specific to Geolocation into a class

chromecast/browser/cast_content_browser_client.cc

Index: chromecast/browser/cast_content_browser_client.cc
diff --git a/chromecast/browser/cast_content_browser_client.cc b/chromecast/browser/cast_content_browser_client.cc
index b31d7635ca935571e0cc1f4e539cdcf284e537c5..4757c60910fb579772d91bd5e48d757dfd1069e7 100644
--- a/chromecast/browser/cast_content_browser_client.cc
+++ b/chromecast/browser/cast_content_browser_client.cc
@@ -83,6 +83,21 @@ static std::unique_ptr<::shell::ShellClient> CreateMojoMediaApplication(
                                         quit_closure));
 }
 #endif  // defined(ENABLE_MOJO_MEDIA_IN_BROWSER_PROCESS)
+
+// A provider of services for Geolocation.
+class CastGeolocationServiceOverrides
+    : public content::GeolocationProvider::ServiceOverrides {
+ public:
+  explicit CastGeolocationServiceOverrides(CastBrowserContext* context)
+      : context_(context) {}
+  AccessTokenStore* CreateAccessTokenStore() override {
+    return new CastAccessTokenStore(context_);
+  }
+
+ private:
+  CastBrowserContext* context_;
+};
+
 }  // namespace
 
 CastContentBrowserClient::CastContentBrowserClient()
@@ -260,8 +275,9 @@ void CastContentBrowserClient::AppendExtraCommandLineSwitches(
   AppendExtraCommandLineSwitches(command_line);
 }
 
-content::AccessTokenStore* CastContentBrowserClient::CreateAccessTokenStore() {
-  return new CastAccessTokenStore(
+GeolocationProvider::ServiceOverrides*
+CastContentBrowserClient::GetGeolocationServiceOverrides() {
+  return new CastGeolocationServiceOverrides(
       CastBrowserProcess::GetInstance()->browser_context());
 }