Initial error handling code

gm/imagefiltersbase.cpp

Index: gm/imagefiltersbase.cpp
diff --git a/gm/imagefiltersbase.cpp b/gm/imagefiltersbase.cpp
index ca45eafe9349dec8dfd05878dcdecaa0aa7af066..30225d8c7cf92243287ba81e0025133b96ca6081 100644
--- a/gm/imagefiltersbase.cpp
+++ b/gm/imagefiltersbase.cpp
@@ -20,7 +20,7 @@ class FailImageFilter : public SkImageFilter {
 public:
     FailImageFilter() : INHERITED(0) {}
 
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(FailImageFilter)
+    SK_DEFINE_FLATTENABLE_DESERIALIZATION_PROCS(FailImageFilter)
 protected:
     virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
                                SkBitmap* result, SkIPoint* offset) {
@@ -35,13 +35,14 @@ private:
 
 // register the filter with the flattenable registry
 static SkFlattenable::Registrar gFailImageFilterReg("FailImageFilter",
-                                                    FailImageFilter::CreateProc);
+                                                    FailImageFilter::CreateProc,
+                                                    FailImageFilter::IsA);
 
 class IdentityImageFilter : public SkImageFilter {
 public:
     IdentityImageFilter() : INHERITED(0) {}
 
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(IdentityImageFilter)
+    SK_DEFINE_FLATTENABLE_DESERIALIZATION_PROCS(IdentityImageFilter)
 protected:
     virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
                                SkBitmap* result, SkIPoint* offset) {
@@ -57,7 +58,8 @@ private:
 
 // register the filter with the flattenable registry
 static SkFlattenable::Registrar gIdentityImageFilterReg("IdentityImageFilter",
-                                                        IdentityImageFilter::CreateProc);
+                                                        IdentityImageFilter::CreateProc,
+                                                        IdentityImageFilter::IsA);
 
 
 ///////////////////////////////////////////////////////////////////////////////