Visual updates for popup

- Update some dimens
  - Increase left padding for shortcuts
  - Adjust arrow and notification ellipsis offset accordingly
  - Align shortcut dividers to be same width as text
  - Notification text 14sp instead of 15sp
  - Increase width of popup by 12dp
- Shortcuts text 87% black instead of 54%
- Arrow has same color as attached side, so takes on header
  gray instead of white when appropriate

Bug: 37753827
Change-Id: I0844b85995f22218a3b7e605e1653cceaed6cda1

src/com/android/launcher3/notification/NotificationItemView.java

@@ -21,6 +21,7 @@ import android.app.Notification;
 import android.content.Context;
 import android.graphics.Rect;
 import android.support.annotation.Nullable;
+import android.support.v4.content.ContextCompat;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
@@ -93,7 +94,7 @@ public class NotificationItemView extends PopupItemView implements LogContainerP
             if (mNotificationHeaderTextColor == Notification.COLOR_DEFAULT) {
                 mNotificationHeaderTextColor =
                         IconPalette.resolveContrastColor(getContext(), palette.dominantColor,
-                            getResources().getColor(R.color.notification_header_background_color));
+                            getResources().getColor(R.color.popup_header_background_color));
             }
             mHeaderCount.setTextColor(mNotificationHeaderTextColor);
         }
@@ -157,6 +158,13 @@ public class NotificationItemView extends PopupItemView implements LogContainerP
         }
     }
 
+    @Override
+    public int getArrowColor(boolean isArrowAttachedToBottom) {
+        return ContextCompat.getColor(getContext(), isArrowAttachedToBottom
+                ? R.color.popup_background_color
+                : R.color.popup_header_background_color);
+    }
+
     @Override
     public void fillInLogContainerData(View v, ItemInfo info, LauncherLogProto.Target target,
             LauncherLogProto.Target targetParent) {