Initial error handling code

src/core/SkFlattenableBuffers.cpp

Index: src/core/SkFlattenableBuffers.cpp
diff --git a/src/core/SkFlattenableBuffers.cpp b/src/core/SkFlattenableBuffers.cpp
index 50a47d5c47c209857f468fae86a575f0bd7c8de2..cb1d77fd06714ac88a3c18051f979dd4c00b1920 100644
--- a/src/core/SkFlattenableBuffers.cpp
+++ b/src/core/SkFlattenableBuffers.cpp
@@ -9,6 +9,17 @@
 #include "SkPaint.h"
 #include "SkTypeface.h"
 
+#include "SkColorFilter.h"
+#include "SkDrawLooper.h"
+#include "SkImageFilter.h"
+#include "SkMaskFilter.h"
+#include "SkPathEffect.h"
+#include "SkPixelRef.h"
+#include "SkRasterizer.h"
+#include "SkShader.h"
+#include "SkUnitMapper.h"
+#include "SkXfermode.h"
+
 SkFlattenableReadBuffer::SkFlattenableReadBuffer() {
     // Set default values. These should be explicitly set by our client
     // via setFlags() if the buffer came from serialization.
@@ -34,6 +45,50 @@ void SkFlattenableReadBuffer::readPaint(SkPaint* paint) {
     paint->unflatten(*this);
 }
 
+template <typename T> T* SkFlattenableReadBuffer::readFlattenableT() {
+    return static_cast<T*>(this->readFlattenable(T::GetType()));
+}
+
+SkColorFilter* SkFlattenableReadBuffer::readColorFilter() {
+    return this->readFlattenableT<SkColorFilter>();
+}
+
+SkDrawLooper* SkFlattenableReadBuffer::readDrawLooper() {
+    return this->readFlattenableT<SkDrawLooper>();
+}
+
+SkImageFilter* SkFlattenableReadBuffer::readImageFilter() {
+    return this->readFlattenableT<SkImageFilter>();
+}
+
+SkMaskFilter* SkFlattenableReadBuffer::readMaskFilter() {
+    return this->readFlattenableT<SkMaskFilter>();
+}
+
+SkPathEffect* SkFlattenableReadBuffer::readPathEffect() {
+    return this->readFlattenableT<SkPathEffect>();
+}
+
+SkPixelRef* SkFlattenableReadBuffer::readPixelRef() {
+    return this->readFlattenableT<SkPixelRef>();
+}
+
+SkRasterizer* SkFlattenableReadBuffer::readRasterizer() {
+    return this->readFlattenableT<SkRasterizer>();
+}
+
+SkShader* SkFlattenableReadBuffer::readShader() {
+    return this->readFlattenableT<SkShader>();
+}
+
+SkUnitMapper* SkFlattenableReadBuffer::readUnitMapper() {
+    return this->readFlattenableT<SkUnitMapper>();
+}
+
+SkXfermode* SkFlattenableReadBuffer::readXfermode() {
+    return this->readFlattenableT<SkXfermode>();
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 SkFlattenableWriteBuffer::SkFlattenableWriteBuffer() {