[iOS] Add GeolocationManager in iOS

GeolocationManager is owned by ShellBrowserMainParts on iOS and
shell_browser_main_parts_ios.mm is introduced to implement
GetGeolocationManager() method so that ShellContentBrowserClient can
get GeolocationManager from it.

`NSLocationWhenInUseUsageDescription` permission is added for
ContentShell on IOS to ask Geolocation permission.
If `kMacCoreLocationBackend` is enabled, it would work with
CoreLocation.framework on iOS as system LocationProvider

Bug: 1421221
Change-Id: Id7e8e382c8537238811b6ce05656bfd774258471
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4494918
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Julie Jeongeun Kim <jkim@igalia.com>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1146889}

content/shell/BUILD.gn

@@ -225,6 +225,7 @@ static_library("content_shell_lib") {
       "browser/bluetooth/ios/shell_bluetooth_device_list_view_controller.mm",
       "browser/bluetooth/shell_bluetooth_delegate_impl_client.cc",
       "browser/bluetooth/shell_bluetooth_delegate_impl_client.h",
+      "browser/shell_browser_main_parts_ios.mm",
       "browser/shell_file_select_helper.cc",
       "browser/shell_file_select_helper.h",
       "browser/shell_platform_delegate_ios.mm",

content/shell/app/ios-Info.plist

@@ -54,5 +54,7 @@
 	<string>Allow content_shell access to camera</string>
 	<key>NSBluetoothAlwaysUsageDescription</key>
 	<string>Allow content_shell access to Bluetooth</string>
+	<key>NSLocationWhenInUseUsageDescription</key>
+	<string>Allow content_shell access to location</string>
 </dict>
 </plist>

content/shell/browser/shell_browser_main_parts.h

@@ -12,6 +12,10 @@
 #include "content/public/browser/browser_main_parts.h"
 #include "content/shell/browser/shell_browser_context.h"
 
+#if BUILDFLAG(IS_IOS)
+#include "services/device/public/cpp/geolocation/geolocation_manager.h"
+#endif
+
 namespace performance_manager {
 class PerformanceManagerLifetime;
 }  // namespace performance_manager
@@ -52,6 +56,9 @@ class ShellBrowserMainParts : public BrowserMainParts {
       std::unique_ptr<base::RunLoop>& run_loop) override;
   void PostMainMessageLoopRun() override;
   void PostDestroyThreads() override;
+#if BUILDFLAG(IS_IOS)
+  device::GeolocationManager* GetGeolocationManager();
+#endif
 
   ShellBrowserContext* browser_context() { return browser_context_.get(); }
   ShellBrowserContext* off_the_record_browser_context() {
@@ -84,6 +91,9 @@ class ShellBrowserMainParts : public BrowserMainParts {
 #if BUILDFLAG(IS_FUCHSIA)
   std::unique_ptr<FuchsiaViewPresenter> fuchsia_view_presenter_;
 #endif
+#if BUILDFLAG(IS_IOS)
+  std::unique_ptr<device::GeolocationManager> geolocation_manager_;
+#endif
 };
 
 }  // namespace content

content/shell/browser/shell_browser_main_parts_ios.mm

@@ -0,0 +1,23 @@
+// Copyright 2023 The Chromium Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/shell/browser/shell_browser_main_parts.h"
+
+#include "services/device/public/cpp/geolocation/system_geolocation_source_mac.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace content {
+
+device::GeolocationManager* ShellBrowserMainParts::GetGeolocationManager() {
+  if (!geolocation_manager_) {
+    geolocation_manager_ =
+        device::SystemGeolocationSourceMac::CreateGeolocationManagerOnMac();
+  }
+  return geolocation_manager_.get();
+}
+
+}  // namespace content

content/shell/browser/shell_content_browser_client.cc

@@ -102,7 +102,7 @@
 #include "components/crash/content/browser/crash_handler_host_linux.h"
 #endif
 
-#if BUILDFLAG(IS_APPLE)
+#if BUILDFLAG(IS_MAC)
 #include "services/device/public/cpp/test/fake_geolocation_manager.h"
 #endif
 
@@ -254,14 +254,14 @@ base::flat_set<url::Origin> GetIsolatedContextOriginSetFromFlag() {
 // needed should be added here so that it's shared between the instances.
 struct SharedState {
   SharedState() {
-#if BUILDFLAG(IS_APPLE)
+#if BUILDFLAG(IS_MAC)
     location_manager = std::make_unique<device::FakeGeolocationManager>();
     location_manager->SetSystemPermission(
         device::LocationSystemPermissionStatus::kAllowed);
 #endif
   }
 
-#if BUILDFLAG(IS_APPLE)
+#if BUILDFLAG(IS_MAC)
   std::unique_ptr<device::FakeGeolocationManager> location_manager;
 #endif
 
@@ -438,8 +438,12 @@ void ShellContentBrowserClient::AppendExtraCommandLineSwitches(
 }
 
 device::GeolocationManager* ShellContentBrowserClient::GetGeolocationManager() {
-#if BUILDFLAG(IS_APPLE)
+#if BUILDFLAG(IS_MAC)
   return GetSharedState().location_manager.get();
+#elif BUILDFLAG(IS_IOS)
+  // TODO(crbug.com/1431447, 1411704): Unify this to FakeGeolocationManager once
+  // exploring browser features in ContentShell on iOS is done.
+  return GetSharedState().shell_browser_main_parts->GetGeolocationManager();
 #else
   return nullptr;
 #endif

services/device/public/cpp/device_features.cc

@@ -17,7 +17,7 @@ BASE_FEATURE(kWinrtGeolocationImplementation,
              "WinrtGeolocationImplementation",
              base::FEATURE_DISABLED_BY_DEFAULT);
 // Enables usage of the CoreLocation API for LocationProvider instead of
-// NetworkLocationProvider for macOS.
+// NetworkLocationProvider for macOS or iOS.
 BASE_FEATURE(kMacCoreLocationBackend,
              "MacCoreLocationBackend",
              base::FEATURE_DISABLED_BY_DEFAULT);

services/device/public/cpp/geolocation/system_geolocation_source_mac.h

@@ -40,6 +40,9 @@ class COMPONENT_EXPORT(GEOLOCATION) SystemGeolocationSourceMac
   void StartWatchingPosition(bool high_accuracy) override;
   void StopWatchingPosition() override;
 
+  // Calls requestWhenInUseAuthorization from CLLocationManager.
+  void AppAttemptsToUseGeolocation() override;
+
  private:
   LocationSystemPermissionStatus GetSystemPermission() const;
 

services/device/public/cpp/geolocation/system_geolocation_source_mac.mm

@@ -10,6 +10,7 @@
 
 #include "base/functional/callback_helpers.h"
 #include "base/sequence_checker.h"
+#include "build/build_config.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
@@ -109,6 +110,14 @@ - (BOOL)permissionInitialized;
   return LocationSystemPermissionStatus::kDenied;
 }
 
+void SystemGeolocationSourceMac::AppAttemptsToUseGeolocation() {
+#if BUILDFLAG(IS_IOS)
+  if (@available(ios 8.0, macOS 10.15, *)) {
+    [location_manager_ requestWhenInUseAuthorization];
+  }
+#endif
+}
+
 }  // namespace device
 
 @implementation GeolocationManagerDelegate
@@ -131,6 +140,15 @@ - (void)locationManager:(CLLocationManager*)manager
   } else {
     _hasPermission = NO;
   }
+
+#if BUILDFLAG(IS_IOS)
+  if (@available(iOS 8.0, *)) {
+    if (status == kCLAuthorizationStatusAuthorizedWhenInUse) {
+      _hasPermission = YES;
+    }
+  }
+#endif
+
   _manager->PermissionUpdated();
 }