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" />
\ No newline at end of file
diff --git a/res/drawable/recent_lists_footer_background.xml b/res/drawable/recent_lists_footer_background.xml
new file mode 100644
index 0000000..566e353
--- /dev/null
+++ b/res/drawable/recent_lists_footer_background.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright (C) 2014 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:tint="?android:attr/colorControlHighlight"
+    android:pinned="false">
+    <!-- Mask to constrain the ripple to the bounds of the view. -->
+    <item android:drawable="@android:color/transparent" />
+</ripple>