Geolocation: move creation of the GeolocationDelegate to the embedders

blimp/engine/app/blimp_browser_main_parts.cc

Index: blimp/engine/app/blimp_browser_main_parts.cc
diff --git a/blimp/engine/app/blimp_browser_main_parts.cc b/blimp/engine/app/blimp_browser_main_parts.cc
index d1a95ecc0d3ecf3e83a9a69b31216c52174299eb..d5390e9a9f7815a64a5e9b7be7f1fd6eea95fba6 100644
--- a/blimp/engine/app/blimp_browser_main_parts.cc
+++ b/blimp/engine/app/blimp_browser_main_parts.cc
@@ -5,14 +5,18 @@
 #include "blimp/engine/app/blimp_browser_main_parts.h"
 
 #include "base/command_line.h"
+#include "base/memory/ptr_util.h"
 #include "base/threading/thread_restrictions.h"
 #include "blimp/common/proto/blimp_message.pb.h"
 #include "blimp/engine/app/blimp_engine_config.h"
 #include "blimp/engine/app/settings_manager.h"
 #include "blimp/engine/common/blimp_browser_context.h"
+#include "blimp/engine/feature/geolocation/blimp_location_provider.h"
 #include "blimp/engine/session/blimp_engine_session.h"
 #include "blimp/net/blimp_connection.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/geolocation_delegate.h"
+#include "content/public/browser/geolocation_provider.h"
 #include "content/public/common/main_function_params.h"
 #include "net/base/net_module.h"
 #include "net/log/net_log.h"
@@ -20,6 +24,25 @@
 namespace blimp {
 namespace engine {
 
+namespace {
+// A provider of services needed by Geolocation.
+class BlimpGeolocationDelegate : public content::GeolocationDelegate {
+ public:
+  BlimpGeolocationDelegate() = default;
+
+  bool UseNetworkLocationProviders() final { return false; }
+
+  std::unique_ptr<content::LocationProvider> OverrideSystemLocationProvider()
+      final {
+    return base::WrapUnique(new BlimpLocationProvider());
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BlimpGeolocationDelegate);
+};
+
+}  // anonymous namespace
+
 BlimpBrowserMainParts::BlimpBrowserMainParts(
     const content::MainFunctionParams& parameters) {}
 
@@ -42,6 +65,8 @@ void BlimpBrowserMainParts::PreMainMessageLoopRun() {
   settings_manager_.reset(new SettingsManager);
   std::unique_ptr<BlimpBrowserContext> browser_context(
       new BlimpBrowserContext(false, net_log_.get()));
+  content::GeolocationProvider::SetGeolocationDelegate(
+      new BlimpGeolocationDelegate());
   engine_session_.reset(
       new BlimpEngineSession(std::move(browser_context), net_log_.get(),
                              engine_config_.get(), settings_manager_.get()));