dbee9bb342
Add ComplexColor interface for both GradientColor and ColorStateList. Set up constant state, factory, theme attrs for GradientColor, while refactoring the ColorStateList's similar code. (Functionality in CSL should be the same). Support themeing in both the root and item level in GradientColor. For example, both startColor in <gradient> tag or color in <item> tag can have theme color. Add tests for both simple and complex cases with themeing etc. Hook up the native VectorDrawable implementation using 2 extra JNI calls for simplicity. Such calls only happen at inflate and applyTheme call. b/22564318 Change-Id: Ibdc564ddb4a7ee0133c6141c4784782f0c93ce0e