IPH bubbles for Passwords Account Storage: Change timeouts

The default timeout values are 10s without interaction, or 3s after
mouseover. That's a bit short for this IPH bubble, so this CL changes
the values to 30s/10s, and also makes the configurable via a variation
param.

Bug: 1115476
Change-Id: Ifa80371e4126c9ba21f0651e64ec68f18f9f36c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2363755
Commit-Queue: Marc Treib <treib@chromium.org>
Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800521}

chrome/browser/ui/views/passwords/password_save_update_with_account_store_view.cc

@@ -312,6 +312,18 @@ std::unique_ptr<views::View> CreateHeaderImage(int image_id) {
   return image_view;
 }
 
+base::TimeDelta GetRegularIPHTimeout() {
+  return base::TimeDelta::FromSeconds(base::GetFieldTrialParamByFeatureAsInt(
+      feature_engagement::kIPHPasswordsAccountStorageFeature,
+      "account_storage_iph_timeout_seconds_regular", 30));
+}
+
+base::TimeDelta GetShortIPHTimeout() {
+  return base::TimeDelta::FromSeconds(base::GetFieldTrialParamByFeatureAsInt(
+      feature_engagement::kIPHPasswordsAccountStorageFeature,
+      "account_storage_iph_timeout_seconds_short", 10));
+}
+
 }  // namespace
 
 // TODO(crbug.com/1077706): come up with a more general solution for this.
@@ -733,6 +745,8 @@ void PasswordSaveUpdateWithAccountStoreView::ShowIPH(IPHType type) {
   bubble_params.preferred_width = kAccountStoragePromoWidth;
   bubble_params.activation_action =
       FeaturePromoBubbleParams::ActivationAction::ACTIVATE;
+  bubble_params.timeout_default = GetRegularIPHTimeout();
+  bubble_params.timeout_short = GetShortIPHTimeout();
 
   account_storage_promo_ =
       FeaturePromoBubbleView::Create(std::move(bubble_params));