Merge changes Id4b68017,Ibee9b52a,I02e0292c,Ib765c9d5,I55577dae, ... into nyc-dev

* changes:
  samples:  Remove duplicate comment from ActionBarCompat-ShareActionProvider
  samples: Remove support lib v4/v13 from DirectBoot
  samples: Change support lib from v24.0.0-beta1 to v24.0.0
  samples: Add global build targets for tests
  samples: Bump minSdk for TextLinkify
  samples: Bump minSdk for TextSwitcher
  samples: Bump minSdk for CustomChoiceList
  samples: Bump minSdk for ActivityInstrumentation
  samples: Remove attrs.xml from RenderScript samples
  samples: Remove duplicate appcompat-v7 declarations
  samples: Bump minSdk for BasicNetworking
  samples: Remove BasicSyncAdapter's attrs.xml file
  samples: Add 'assembleDebug' as a task in global build.gradle
diff --git a/wearable/wear/WearDrawers/Wearable/src/main/res/layout/activity_main.xml b/wearable/wear/WearDrawers/Wearable/src/main/res/layout/activity_main.xml
index 97e0366..6362ebb 100644
--- a/wearable/wear/WearDrawers/Wearable/src/main/res/layout/activity_main.xml
+++ b/wearable/wear/WearDrawers/Wearable/src/main/res/layout/activity_main.xml
@@ -21,6 +21,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="@color/black"
     tools:context="com.example.android.wearable.wear.weardrawers.MainActivity"
     tools:deviceIds="wear">
 
@@ -33,7 +34,7 @@
         android:id="@+id/top_navigation_drawer"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:background="@color/dark_grey" />
+        android:background="@color/grey" />
 
     <android.support.wearable.view.drawer.WearableActionDrawer
         android:id="@+id/bottom_action_drawer"