Add support for ColorFilters.

Color filters are fully supported and can be used with shaders.

Change-Id: Id90ccf1c81cb462f2431f366f3f8f710d7971e04
diff --git a/libs/hwui/ProgramCache.h b/libs/hwui/ProgramCache.h
index d60f6ce..a1a4a0e 100644
--- a/libs/hwui/ProgramCache.h
+++ b/libs/hwui/ProgramCache.h
@@ -35,7 +35,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 // Debug
-#define DEBUG_PROGRAM_CACHE 1
+#define DEBUG_PROGRAM_CACHE 0
 
 // Debug
 #if DEBUG_PROGRAM_CACHE
@@ -180,6 +180,8 @@
     void generatePorterDuffBlend(String8& shader, const char* name, SkXfermode::Mode mode);
     void generateTextureWrap(String8& shader, GLenum wrapS, GLenum wrapT);
 
+    void printLongString(const String8& shader) const;
+
     KeyedVector<programid, Program*> mCache;
 
 }; // class ProgramCache