[SharingHub] Add metrics for favicon generation in preview.

Bug: 1141583
Change-Id: I4ae4990ccafec8585aa91000b69a0f99ba06fed5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2493123Reviewed-by: Kyle Milka <kmilka@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Sophey Dong <sophey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#820240}

chrome/browser/share/android/java/src/org/chromium/chrome/browser/share/share_sheet/ShareSheetBottomSheetContent.java

@@ -264,6 +264,7 @@ class ShareSheetBottomSheetContent implements BottomSheetContent, OnItemClickLis
         if (icon == null) {
             setDefaultIconForPreview(
                     AppCompatResources.getDrawable(mContext, R.drawable.generic_favicon));
+            RecordUserAction.record("SharingHubAndroid.GenericFaviconShown");
         } else {
             int size = mContext.getResources().getDimensionPixelSize(
                     R.dimen.sharing_hub_preview_inner_icon_size);
@@ -271,6 +272,7 @@ class ShareSheetBottomSheetContent implements BottomSheetContent, OnItemClickLis
             ImageView imageView = this.getContentView().findViewById(R.id.image_preview);
             imageView.setImageBitmap(scaledIcon);
             centerIcon(imageView);
+            RecordUserAction.record("SharingHubAndroid.LinkFaviconShown");
         }
     }
 

tools/metrics/actions/actions.xml

@@ -21153,6 +21153,23 @@ should be able to be added at any place in this file.
   </description>
 </action>
 
+<action name="SharingHubAndroid.GenericFaviconShown">
+  <owner>sophey@chromium.org</owner>
+  <owner>src/components/send_tab_to_self/OWNERS</owner>
+  <description>
+    The generic favicon was shown in the sharing hub preview. This means the
+    link's favicon was not available.
+  </description>
+</action>
+
+<action name="SharingHubAndroid.LinkFaviconShown">
+  <owner>sophey@chromium.org</owner>
+  <owner>src/components/send_tab_to_self/OWNERS</owner>
+  <description>
+    The link's favicon was shown in the sharing hub preview.
+  </description>
+</action>
+
 <action name="SharingHubAndroid.LinkToTextSelected">
   <owner>gayane@chromium.org</owner>
   <owner>src/components/send_tab_to_self/OWNERS</owner>