Revert of Remove Platform::current checks from Mojo's error handlers in geolocation

third_party/WebKit/Source/modules/geolocation/Geolocation.cpp

Index: third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
diff --git a/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp b/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
index 7b14da1bb8fdbe811a7ca521468de0c61d052180..cd8df3c870ffe60090e87a18ad276bf98cb8bf77 100644
--- a/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
+++ b/third_party/WebKit/Source/modules/geolocation/Geolocation.cpp
@@ -526,6 +526,13 @@
 
 void Geolocation::onGeolocationConnectionError()
 {
+    // If a request is outstanding at process shutdown, this error handler will
+    // be called. In that case, blink has already shut down so do nothing.
+    //
+    // TODO(sammc): Remove this once renderer shutdown is no longer graceful.
+    if (!Platform::current())
+        return;
+
     PositionError* error = PositionError::create(PositionError::kPositionUnavailable, failedToStartServiceErrorMessage);
     error->setIsFatal(true);
     handleError(error);
@@ -533,6 +540,13 @@
 
 void Geolocation::onPermissionConnectionError()
 {
+    // If a request is outstanding at process shutdown, this error handler will
+    // be called. In that case, blink has already shut down so do nothing.
+    //
+    // TODO(sammc): Remove this once renderer shutdown is no longer graceful.
+    if (!Platform::current())
+        return;
+
     onGeolocationPermissionUpdated(mojom::blink::PermissionStatus::DENIED);
 }