[Android][TouchToFill] Increase half-state height to show 2+ suggestions

This cl increases the height of the touch to fill sheet to show a second
suggestion by default. To keep the height consistent, the peeking height
for the third suggestion was reduced.

It now looks according to the mocks linked in the linked bug.

Bug: 1029704
Change-Id: I52bbb15c3ee6cf9bc423a4745168addced02d69d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1945172Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Friedrich [CET] <fhorschig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#720506}

chrome/browser/touch_to_fill/android/internal/java/res/values/dimens.xml

@@ -9,17 +9,17 @@
 
     <!-- Below are the different Half-state peeking heights. The height is the
          sum of all components. It varies depending on the suggestion count. The
-         base height is 282dp:
+         base height is 298dp:
          Bottom sheet shadows and padding (18dp)
          + Handlebar (16dp)
          + Header size (112 dp)
          + Title size and margin (48+16dp)
-         + First suggestion (72dp) -->
-    <!-- Base height (282dp) plus padding (8dp) plus half suggestion (36dp) -->
-    <dimen name="touch_to_fill_sheet_height_multiple_credentials">326dp</dimen>
-    <!-- Base height (282dp) plus bottom padding (16dp) -->
+         + First suggestion (72dp)
+         + Bottom padding (16dp) -->
     <dimen name="touch_to_fill_sheet_height_single_credential">298dp</dimen>
-    <!-- Base height (282dp) + confirm button with paddings (48+2*16dp) -->
+    <!-- Base height (298dp) plus padding (8dp) plus 2nd suggestion (72dp) -->
+    <dimen name="touch_to_fill_sheet_height_multiple_credentials">378dp</dimen>
+    <!-- Base height (298dp)  plus padding (16dp) plus confirm button (48dp) -->
     <dimen name="touch_to_fill_sheet_height_single_credential_with_button">
       362dp
     </dimen>