Improve clickability of search bar buttons

Bug: 22958299

Change-Id: I9471f16bdc0f4a9bcd9d87c641139a355e37d63b
diff --git a/res-common/values/dimens.xml b/res-common/values/dimens.xml
index cd1f137..b75e0a7 100644
--- a/res-common/values/dimens.xml
+++ b/res-common/values/dimens.xml
@@ -127,7 +127,7 @@
     <!-- Padding around the icon in the search box. -->
     <dimen name="search_box_icon_margin">4dp</dimen>
     <!-- Size of the icon (voice search, back arrow) in the search box. -->
-    <dimen name="search_box_icon_size">28dp</dimen>
+    <dimen name="search_box_icon_size">36dp</dimen>
     <!-- Size of the close icon.-->
     <dimen name="search_box_close_icon_size">56dp</dimen>
     <!-- Padding around the close button. It's visible size without padding is 24dp. -->