Add padding between dial button and dialpad

In large-text modes, the dialpad and dial button would partially
overlap. This adds a margin.

Change-Id: I64c6f20c3108bd1b5f39d82ba4729d7b2634b1e4
Fix: 28967943
Test: Visual inspection of result
diff --git a/res/layout/emergency_dialer.xml b/res/layout/emergency_dialer.xml
index 01c2f80..ee55c06 100644
--- a/res/layout/emergency_dialer.xml
+++ b/res/layout/emergency_dialer.xml
@@ -112,11 +112,16 @@
 
     </LinearLayout>
 
+    <Space
+        android:id="@+id/floating_action_button_margin_bottom"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/floating_action_button_margin_bottom"
+        android:layout_alignParentBottom="true"/>
+
     <FrameLayout
         android:id="@+id/floating_action_button_container"
         android:layout_width="@dimen/floating_action_button_width"
         android:layout_height="@dimen/floating_action_button_height"
-        android:layout_marginBottom="@dimen/floating_action_button_margin_bottom"
         android:layout_gravity="center_horizontal|bottom" >
 
         <ImageButton
diff --git a/src/com/android/phone/EmergencyDialer.java b/src/com/android/phone/EmergencyDialer.java
index 227e112..c402148 100644
--- a/src/com/android/phone/EmergencyDialer.java
+++ b/src/com/android/phone/EmergencyDialer.java
@@ -106,8 +106,6 @@
 
     private static final int BAD_EMERGENCY_NUMBER_DIALOG = 0;
 
-    // private static final int USER_ACTIVITY_TIMEOUT_WHEN_NO_PROX_SENSOR = 15000; // millis
-
     EditText mDigits;
     private View mDialButton;
     private View mDelete;