[Modern] Adjust padding for list style clear search button

BUG=802935

Change-Id: I7e935c623fc70e51e9989a80bde32135b0f0a1b8
Reviewed-on: https://chromium-review.googlesource.com/894643Reviewed-by: Matthew Jones <mdjones@chromium.org>
Commit-Queue: Theresa <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533104}

chrome/android/java/res/values/dimens.xml

@@ -521,7 +521,7 @@
     <!--  Miscellaneous dimensions -->
     <dimen name="action_bar_shadow_height">10dp</dimen>
     <dimen name="card_corner_radius">2dp</dimen>
-    <dimen name="clear_text_button_end_padding">8dp</dimen>
+    <dimen name="clear_text_button_end_padding">4dp</dimen>
     <dimen name="sync_promo_view_padding">16dp</dimen>
     <dimen name="sad_tab_bullet_gap">12dp</dimen>
     <dimen name="sad_tab_bullet_leading_offset">1dp</dimen>