DO NOT MERGE. Tidy up call log shadow/touch interactions.

- Constrain the recents list footer ripple to its dimensions.
- Eliminate bottom margin on the call log list items.
- Changed translationZ on expand to apply to the call log list item
instead of just its primary action view.
- Adjust the outline clipping so that a shadow doesn't appear under
the day group header, now that the translation is applied to the
entire list item.
- Instantiated a number of fixed property values in onCreate() in the
CallLogFragment, instead of whenever they're needed.

Bug: 15165669
Change-Id: I5ed81ae49fb0c3f6eed360f247c1fd67278a628c
(cherry picked from commit 6e765f9a71b450809c4916a5d5562cdc1372a39a)
diff --git a/res/drawable/call_log_background.xml b/res/drawable/call_log_background.xml
index c0c4889..4857fb5 100644
--- a/res/drawable/call_log_background.xml
+++ b/res/drawable/call_log_background.xml
@@ -15,5 +15,5 @@
      limitations under the License.
 -->
 <ripple xmlns:android="http://schemas.android.com/apk/res/android"
-                android:tint="?android:attr/colorControlHighlight"
-                android:pinned="false" />
+    android:tint="?android:attr/colorControlHighlight"
+    android:pinned="false" />
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