Geolocation: extract ContentBrowserClient methods specific to Geolocation into a class

content/public/browser/content_browser_client.cc

Index: content/public/browser/content_browser_client.cc
diff --git a/content/public/browser/content_browser_client.cc b/content/public/browser/content_browser_client.cc
index c16dd6b454718e6c821acb0c6e61de2f64063362..e4dbb96547740762dacf995e54c99193b2c83ccd 100644
--- a/content/public/browser/content_browser_client.cc
+++ b/content/public/browser/content_browser_client.cc
@@ -307,7 +307,9 @@ net::NetLog* ContentBrowserClient::GetNetLog() {
   return nullptr;
 }
 
-AccessTokenStore* ContentBrowserClient::CreateAccessTokenStore() {
+GeolocationProvider::ServiceOverrides*
+ContentBrowserClient::GetGeolocationServiceOverrides() {
+  // We don't need to override anything, the default implementation is good.
   return nullptr;
 }
 
@@ -356,14 +358,6 @@ ui::SelectFilePolicy* ContentBrowserClient::CreateSelectFilePolicy(
   return nullptr;
 }
 
-LocationProvider* ContentBrowserClient::OverrideSystemLocationProvider() {
-  return nullptr;
-}
-
-bool ContentBrowserClient::UseNetworkLocationProviders() {
-  return true;
-}
-
 DevToolsManagerDelegate* ContentBrowserClient::GetDevToolsManagerDelegate() {
   return nullptr;
 }