Stubs for triggering the LSD in Clank

chrome/browser/android/location_settings_impl.cc

Index: chrome/browser/android/location_settings_impl.cc
diff --git a/chrome/browser/android/location_settings_impl.cc b/chrome/browser/android/location_settings_impl.cc
index 9da10a1b624368c3967635d2ece2772a9651cefb..32232db88efe08df72614a2a956166937e8fee72 100644
--- a/chrome/browser/android/location_settings_impl.cc
+++ b/chrome/browser/android/location_settings_impl.cc
@@ -10,6 +10,11 @@
 
 using base::android::AttachCurrentThread;
 
+using LocationSettingsDialogOutcome =
+    LocationSettings::LocationSettingsDialogOutcome;
+using LocationSettingsDialogOutcomeCallback =
+    LocationSettings::LocationSettingsDialogOutcomeCallback;
+
 LocationSettingsImpl::LocationSettingsImpl() {}
 
 LocationSettingsImpl::~LocationSettingsImpl() {}
@@ -20,3 +25,37 @@ bool LocationSettingsImpl::CanSitesRequestLocationPermission(
   return Java_LocationSettings_canSitesRequestLocationPermission(
       env, web_contents->GetJavaWebContents());
 }
+
+bool LocationSettingsImpl::CanPromptToEnableSystemLocationSetting() {
+  JNIEnv* env = AttachCurrentThread();
+  return Java_LocationSettings_canPromptToEnableSystemLocationSetting(env);
+}
+
+void LocationSettingsImpl::PromptToEnableSystemLocationSetting(
+    const LocationSettingsDialogContext prompt_context,
+    content::WebContents* web_contents,
+    LocationSettingsDialogOutcomeCallback callback) {
+  JNIEnv* env = AttachCurrentThread();
+  auto* callback_ptr = new LocationSettingsDialogOutcomeCallback(

[Ted C, 2017/03/02 00:21:56]

maybe a comment around ownership and that Outcome is guaranteed to be called and
destroy it.

[qfiard, 2017/03/02 13:28:13]

Done.

+      std::move(callback));
+  Java_LocationSettings_promptToEnableSystemLocationSetting(
+      env, prompt_context, web_contents->GetJavaWebContents(),
+      reinterpret_cast<jlong>(callback_ptr));
+}
+
+static void OnLocationSettingsDialogOutcome(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jclass>& jcaller,
+    jlong callback_ptr,
+    int result) {
+  auto* callback =
+      reinterpret_cast<LocationSettingsDialogOutcomeCallback*>(
+          callback_ptr);
+  std::move(*callback).Run(static_cast<LocationSettingsDialogOutcome>(
+      result));
+  delete callback;
+}
+
+bool LocationSettingsImpl::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}