Makes sure the keyboard typing isn't blocked when InputMethod::OnFocus() is not correctly called.

ui/views/widget/desktop_aura/desktop_native_widget_aura.cc

Index: ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
diff --git a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
index 618d77449607e2a0d5878b299838f0acf951d633..1e4f71f5be137818c1d0dcc217042c8a3dbdf297 100644
--- a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
+++ b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
@@ -369,8 +369,11 @@ void DesktopNativeWidgetAura::HandleActivationChanged(bool active) {
   native_widget_delegate_->OnNativeWidgetActivationChanged(active);
   aura::client::ActivationClient* activation_client =
       aura::client::GetActivationClient(host_->window());
-  if (!activation_client)
+  if (!activation_client) {
+    GetInputMethod()->GetLogCollector()->AddString(
+        "Missing OnFocus call when activating due to no activation client.");
     return;
+  }
   if (active) {
     if (GetWidget()->HasFocusManager()) {
       // This function can be called before the focus manager has had a
@@ -387,6 +390,9 @@ void DesktopNativeWidgetAura::HandleActivationChanged(bool active) {
       // Refreshes the focus info to IMF in case that IMF cached the old info
       // about focused text input client when it was "inactive".
       GetInputMethod()->OnFocus();
+    } else {
+      GetInputMethod()->GetLogCollector()->AddString(
+          "Missing OnFocus call when activating due to no focus manager.");
     }
   } else {
     // If we're not active we need to deactivate the corresponding