Change the Y alignment of the section header IPH to match the UI mock

Bug: 1128161
Change-Id: Ic5e6cc0439f88394b0d237490f66329f648d0180
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2411488Reviewed-by: Dan H <harringtond@chromium.org>
Commit-Queue: Vincent Boisselle <vincb@google.com>
Cr-Commit-Position: refs/heads/master@{#807071}

chrome/android/java/src/org/chromium/chrome/browser/ntp/snippets/SectionHeaderView.java

@@ -140,6 +140,8 @@ public class SectionHeaderView extends LinearLayout implements View.OnClickListe
                 return result;
             }
         };
+        int yInsetPx =
+                getResources().getDimensionPixelOffset(R.dimen.text_bubble_menu_anchor_y_inset);
         helper.requestShowIPH(new IPHCommandBuilder(mMenuView.getContext().getResources(),
                 FeatureConstants.FEED_HEADER_MENU_FEATURE, R.string.ntp_feed_menu_iph,
                 R.string.accessibility_ntp_feed_menu_iph)
@@ -147,7 +149,7 @@ public class SectionHeaderView extends LinearLayout implements View.OnClickListe
                                       .setCircleHighlight(true)
                                       .setShouldHighlight(true)
                                       .setDismissOnTouch(false)
-                                      .setInsetRect(new Rect(0, 0, 0, 0))
+                                      .setInsetRect(new Rect(0, 0, 0, -yInsetPx))
                                       .setAutoDismissTimeout(5 * 1000)
                                       .setViewRectProvider(rectProvider)
                                       .build());