Create a semi-stable API for capturing the state of an SkCanvas and reconstructing that state acros…

include/core/SkWriter32.h

Index: include/core/SkWriter32.h
diff --git a/include/core/SkWriter32.h b/include/core/SkWriter32.h
index 308e28897fa860df98cb473ad4c9bab9d391e54f..0db6540a9f5ee32fa2bd12beb1cb983889591d9c 100644
--- a/include/core/SkWriter32.h
+++ b/include/core/SkWriter32.h
@@ -114,6 +114,10 @@ public:
         *(SkRect*)this->reserve(sizeof(rect)) = rect;
     }
 
+    void writeIRect(const SkIRect& rect) {
+        *(SkIRect*)this->reserve(sizeof(rect)) = rect;
+    }
+
     void writeRRect(const SkRRect& rrect) {
         rrect.writeToMemory(this->reserve(SkRRect::kSizeInMemory));
     }