Improve resource loading by ~3x

Bug: 22392651

ColorStateLists were never cached because the lazy-create
of the constant state had a typo.

Resource caching in general was broken because ThemeKey did not
clone the hash code, so all keys in the cache had a hashCode
of 0 which did not match the real, uncloned ThemeKeys hash code
so the binary search in ArrayMap based off of hash code was failing.

Change-Id: I9df1628b226bfa797bed97875354c19bf64f41ad

core/java/android/content/res/ColorStateList.java

@@ -603,7 +603,7 @@ public class ColorStateList implements Parcelable {
      * @hide only for resource preloading
      */
     public ConstantState<ColorStateList> getConstantState() {
-        if (mFactory != null) {
+        if (mFactory == null) {
             mFactory = new ColorStateListFactory(this);
         }
         return mFactory;

core/java/android/content/res/Resources.java

@@ -1918,6 +1918,7 @@ public class Resources {
             other.mResId = mResId;
             other.mForce = mForce;
             other.mCount = mCount;
+            other.mHashCode = mHashCode;
             return other;
         }
     }