Geolocation: extract ContentBrowserClient methods specific to Geolocation into a class

blimp/engine/app/blimp_content_browser_client.cc

 // Copyright (c) 2015 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 "blimp/engine/app/blimp_content_browser_client.h"
 #include "blimp/engine/app/blimp_browser_main_parts.h"
 #include "blimp/engine/app/settings_manager.h"
+#include "blimp/engine/feature/geolocation/blimp_location_provider.h"
 #include "blimp/engine/mojo/blob_channel_service.h"
 #include "services/shell/public/cpp/interface_registry.h"
 
 namespace blimp {
 namespace engine {
 
+namespace {
+// A provider of services needed by Geolocation.
+class BlimpGeolocationDelegate : public content::GeolocationProvider::Delegate {
+ public:
+  BlimpGeolocationDelegate() = default;
+
+  bool UseNetworkLocationProviders() final { return false; }
+
+  content::LocationProvider* OverrideSystemLocationProvider() final {
+    if (!location_provider_)
+      location_provider_ = base::WrapUnique(new BlimpLocationProvider());
+    return location_provider_.get();
+  }
+
+ private:
+  std::unique_ptr<BlimpLocationProvider> location_provider_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlimpGeolocationDelegate);
+};
+
+}  // anonymous namespace
+
 BlimpContentBrowserClient::BlimpContentBrowserClient() {}
 
 BlimpContentBrowserClient::~BlimpContentBrowserClient() {}
 
 content::BrowserMainParts* BlimpContentBrowserClient::CreateBrowserMainParts(
     const content::MainFunctionParams& parameters) {
   blimp_browser_main_parts_ = new BlimpBrowserMainParts(parameters);
   // BrowserMainLoop takes ownership of the returned BrowserMainParts.
   return blimp_browser_main_parts_;
 }
 
 void BlimpContentBrowserClient::OverrideWebkitPrefs(
     content::RenderViewHost* render_view_host,
     content::WebPreferences* prefs) {
   if (!blimp_browser_main_parts_)
     return;
 
   if (!blimp_browser_main_parts_->GetSettingsManager())
     return;
 
   blimp_browser_main_parts_->GetSettingsManager()->UpdateWebkitPreferences(
       prefs);
 }
 
 BlimpBrowserContext* BlimpContentBrowserClient::GetBrowserContext() {
   return blimp_browser_main_parts_->GetBrowserContext();
 }
 
-content::LocationProvider*
-BlimpContentBrowserClient::OverrideSystemLocationProvider() {
-  if (!location_provider_) {
-    location_provider_ = base::WrapUnique(new BlimpLocationProvider());
-  }
-  return location_provider_.get();
-}
-
-bool BlimpContentBrowserClient::UseNetworkLocationProviders() {
-  return false;
+content::GeolocationProvider::Delegate*
+BlimpContentBrowserClient::CreateGeolocationDelegate() {
+  return new BlimpGeolocationDelegate();
 }
 
 void BlimpContentBrowserClient::ExposeInterfacesToRenderer(
     shell::InterfaceRegistry* registry,
     content::RenderProcessHost* render_process_host) {
   registry->AddInterface<mojom::BlobChannel>(
       base::Bind(&BlobChannelService::Create,
                  blimp_browser_main_parts_->GetBlobChannelSender()));
 }
 
 }  // namespace engine
 }  // namespace blimp