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

include/core/SkPath.h

Index: include/core/SkPath.h
diff --git a/include/core/SkPath.h b/include/core/SkPath.h
index a6674d9afb4e65cc024ee8a155d5f4f4b4869bfe..eb0846be903ac8b97145fc705332ff1eaf18fdb3 100644
--- a/include/core/SkPath.h
+++ b/include/core/SkPath.h
@@ -27,6 +27,7 @@
 class SkReader32;
 class SkWriter32;
 class SkAutoPathBoundsUpdate;
+class SkFlattenableReadBuffer;
 class SkString;
 class SkRRect;
 
@@ -910,6 +911,14 @@ public:
     void dump() const;
 
     /**
+     *  Returns the number of bytes of the current object's flattened representation.
+     */
+    uint32_t sizeInMemory() const;
+    /**
+     *  Returns the number of bytes to read.
+     */
+    static uint32_t SizeToRead(SkFlattenableReadBuffer& buffer);

[reed1, 2013/10/24 20:51:19]

:( Do we really need to teach SkPath about readbuffers? What is wrong with the
current memory-based interface?

+    /**
      *  Write the region to the buffer, and return the number of bytes written.
      *  If buffer is NULL, it still returns the number of bytes.
      */