Checking structure sizes before reading them from memory to avoid overflowing the buffer's stream.

src/core/SkMatrix.cpp

Index: src/core/SkMatrix.cpp
diff --git a/src/core/SkMatrix.cpp b/src/core/SkMatrix.cpp
index 5bcb35b298874088004f5c39fba7133e85a0c323..e1736cd7a3d0fdee1f185e4a947f1f425124421e 100644
--- a/src/core/SkMatrix.cpp
+++ b/src/core/SkMatrix.cpp
@@ -1921,22 +1921,6 @@ const SkMatrix& SkMatrix::InvalidMatrix() {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-uint32_t SkMatrix::writeToMemory(void* buffer) const {
-    // TODO write less for simple matrices
-    if (buffer) {
-        memcpy(buffer, fMat, 9 * sizeof(SkScalar));
-    }
-    return 9 * sizeof(SkScalar);
-}
-
-uint32_t SkMatrix::readFromMemory(const void* buffer) {
-    if (buffer) {
-        memcpy(fMat, buffer, 9 * sizeof(SkScalar));
-        this->setTypeMask(kUnknown_Mask);
-    }
-    return 9 * sizeof(SkScalar);
-}
-
 #ifdef SK_DEVELOPER
 void SkMatrix::dump() const {
     SkString str;