minor size optimizations

src/main/java/com/owncloud/android/ui/adapter/UserListAdapter.java

@@ -82,7 +82,7 @@ public class UserListAdapter extends ArrayAdapter implements DisplayUtils.Avatar
         storageManager = new FileDataStorageManager(account, getContext().getContentResolver());
         capabilities = storageManager.getCapability(account.name);
 
-        avatarRadiusDimension = context.getResources().getDimension(R.dimen.standard_padding);
+        avatarRadiusDimension = context.getResources().getDimension(R.dimen.user_icon_radius);
     }
 
     @Override
@@ -166,7 +166,6 @@ public class UserListAdapter extends ArrayAdapter implements DisplayUtils.Avatar
     private void prepareOptionsMenu(Menu menu, OCShare share) {
         int sharePermissions = share.getPermissions();
         boolean isFederated = ShareType.FEDERATED.equals(share.getShareType());
-        int accentColor = ThemeUtils.primaryAccentColor(context);
 
         MenuItem reshareItem = menu.findItem(R.id.action_can_reshare);
         if (isFederated ||

src/main/res/layout/file_details_share_user_item.xml

@@ -29,8 +29,8 @@
 
         <ImageView
             android:id="@+id/userIcon"
-            android:layout_width="@dimen/file_details_user_icon_layout_width"
-            android:layout_height="@dimen/file_details_user_icon_layout_height"
+            android:layout_width="@dimen/user_icon_size"
+            android:layout_height="@dimen/user_icon_size"
             android:src="@drawable/ic_user"
             android:layout_gravity="center_vertical"
             android:layout_marginTop="@dimen/standard_half_margin"

src/main/res/values/dims.xml

@@ -53,6 +53,7 @@
     <dimen name="zero">0dp</dimen>
     <dimen name="account_item_layout_height">72dp</dimen>
     <dimen name="user_icon_size">40dp</dimen>
+    <dimen name="user_icon_radius">20dp</dimen>
     <dimen name="share_icon_size">56dp</dimen>
     <dimen name="alternate_margin">10dp</dimen>
     <dimen name="alternate_half_margin">5dp</dimen>