Initial error handling code

src/core/SkFlattenableSerialization.cpp

Index: src/core/SkFlattenableSerialization.cpp
diff --git a/src/core/SkFlattenableSerialization.cpp b/src/core/SkFlattenableSerialization.cpp
index b74c82f051648f77dce5da97b26e21ba53b12e4b..085ca6b1736d1e4ca8116451880573dc9cb66c4f 100644
--- a/src/core/SkFlattenableSerialization.cpp
+++ b/src/core/SkFlattenableSerialization.cpp
@@ -9,10 +9,10 @@
 
 #include "SkData.h"
 #include "SkFlattenable.h"
-#include "SkOrderedReadBuffer.h"
+#include "SkSecureReadBuffer.h"
 #include "SkOrderedWriteBuffer.h"
 
-SkData* SkSerializeFlattenable(SkFlattenable* flattenable) {
+SkData* SkSafeSerializeFlattenable(SkFlattenable* flattenable) {
     SkOrderedWriteBuffer writer(1024);
     writer.setFlags(SkOrderedWriteBuffer::kCrossProcess_Flag);
     writer.writeFlattenable(flattenable);
@@ -22,7 +22,7 @@ SkData* SkSerializeFlattenable(SkFlattenable* flattenable) {
     return SkData::NewFromMalloc(data, size);
 }
 
-SkFlattenable* SkDeserializeFlattenable(const void* data, size_t size) {
-    SkOrderedReadBuffer buffer(data, size);
-    return buffer.readFlattenable();
+SkFlattenable* SkSafeDeserializeFlattenable(const void* data, size_t size) {
+    SkSecureReadBuffer reader(data, size);
+    return reader.readFlattenable();
 }