Initial error handling code

samplecode/SampleText.cpp

Index: samplecode/SampleText.cpp
diff --git a/samplecode/SampleText.cpp b/samplecode/SampleText.cpp
index c6aaa52a0b11f76e3823104be4b9e26406b7972f..8f236cc2ca6e5e8fb5f450a088584afe32ffc1a7 100644
--- a/samplecode/SampleText.cpp
+++ b/samplecode/SampleText.cpp
@@ -57,7 +57,7 @@ public:
     }
 #endif
 
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(ReduceNoise)
+    SK_DEFINE_FLATTENABLE_DESERIALIZATION_PROCS(ReduceNoise)
 
 private:
     ReduceNoise(SkFlattenableReadBuffer& rb) : SkKernel33ProcMaskFilter(rb) {}
@@ -89,7 +89,7 @@ public:
     }
 #endif
 
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Darken)
+    SK_DEFINE_FLATTENABLE_DESERIALIZATION_PROCS(Darken)
 
 private:
     Darken(SkFlattenableReadBuffer& rb) : SkKernel33ProcMaskFilter(rb) {}
@@ -147,7 +147,7 @@ public:
     typedef SkFlattenable* (*Factory)(SkFlattenableReadBuffer&);
 
     SK_DEVELOPER_TO_STRING()
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPowerMode)
+    SK_DEFINE_FLATTENABLE_DESERIALIZATION_PROCS(SkPowerMode)
 
 private:
     SkScalar fExp;          // user's value