[HeavyAds] Add string for reload button in error page

This CL adds a tentative string for a reload button to the details view,
of the heavy ad error page which disables the intervention on the site
and reloads the page.

This text aligns with the existing quiet webview interstitials. The full
implementation of the functionality exists on
https://crrev.com/c/2242169

Change-Id: If0bba4a50f9f8c7396c90e3e9fc7061c2ced6b67
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2242645Reviewed-by: Josh Karlin <jkarlin@chromium.org>
Commit-Queue: John Delaney <johnidel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#778009}

chrome/app/generated_resources.grd

@@ -9869,6 +9869,9 @@ Please help our engineers fix this problem. Tell us what happened right before y
     <message name="IDS_HEAVY_AD_INTERVENTION_SUMMARY" desc="Summary in heavy ad intervention page when ad was removed for using too many system resources.">
       This ad used too many resources for your device, so Chrome removed it.
     </message>
+    <message name="IDS_HEAVY_AD_INTERVENTION_BUTTON_RELOAD" desc="Label for the button that reloads the page and disables the intervention">
+      Reload and show anyway
+    </message>
 
     <if expr="is_win">
       <message name="IDS_UTILITY_PROCESS_UTILITY_WIN_NAME" desc="The name of the utility process used to handle Windows utility operations.">

chrome/app/generated_resources_grd/IDS_HEAVY_AD_INTERVENTION_BUTTON_RELOAD.png.sha1

+e580463756b6c1c62b61e154417728eab1f64172
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