Use support.v7.palette to get header tint

Todo in later cls:
-save the extracted tint, so we don't have unnecessary delay
 when returning from the edit screen
-animate the change of tint color. This matters for tablet
 and after the photo changes.

Change-Id: I11685c1489a5c7b49f46c250033f4f303b076ef6
diff --git a/src/com/android/contacts/widget/MultiShrinkScroller.java b/src/com/android/contacts/widget/MultiShrinkScroller.java
index ff5c13f..9df3c61 100644
--- a/src/com/android/contacts/widget/MultiShrinkScroller.java
+++ b/src/com/android/contacts/widget/MultiShrinkScroller.java
@@ -52,6 +52,7 @@
     private View mToolbar;
     private ImageView mPhotoView;
     private MultiShrinkScrollerListener mListener;
+    private int mHeaderTintColor;
 
     private final Scroller mScroller;
     private final EdgeEffect mEdgeGlowBottom;
@@ -64,7 +65,6 @@
     private final int mElasticScrollOverTopRegion;
     private final PorterDuffColorFilter mColorFilter
             = new PorterDuffColorFilter(0, PorterDuff.Mode.SRC_ATOP);
-    private final int mHeaderTintColor;
 
     public interface MultiShrinkScrollerListener {
         void onScrolledOffBottom();
@@ -219,6 +219,11 @@
         return true;
     }
 
+    public void setHeaderTintColor(int color) {
+        mHeaderTintColor = color;
+        updatePhotoTint();
+    }
+
     private void startDrag() {
         mIsBeingDragged = true;
         mScroller.abortAnimation();