skia: Add runtime option to disable picture IO security precautions

include/core/SkPicture.h

 /*
  * Copyright 2007 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPicture_DEFINED
 #define SkPicture_DEFINED
 
@@ skipping 135 matching lines @@
 
     /** Return true if the picture is suitable for rendering on the GPU.  */
     bool suitableForGpuRasterization(GrContext*, const char** whyNot = NULL) const;
 
     // Sent via SkMessageBus from destructor.
     struct DeletionMessage { int32_t fUniqueID; };  // TODO: -> uint32_t?
 
     // Returns NULL if this is not an SkBigPicture.
     virtual const SkBigPicture* asSkBigPicture() const { return NULL; }
 
+    // Global setting to enable or disable security precautions for serialization.
+    static void SetPictureIOSecurityPrecautionsEnabled_Dangerous(bool set);
+    static bool PictureIOSecurityPrecautionsEnabled();
+
 private:
     // Subclass whitelist.
     SkPicture();
     friend class SkBigPicture;
     friend class SkEmptyPicture;
     template <typename> friend class SkMiniPicture;
 
     virtual int numSlowPaths() const = 0;
     friend struct SkPathCounter;
 
@@ skipping 16 matching lines @@
     static bool IsValidPictInfo(const SkPictInfo& info);
     static SkPicture* Forwardport(const SkPictInfo&, const SkPictureData*);
 
     SkPictInfo createHeader() const;
     SkPictureData* backport() const;
 
     mutable uint32_t fUniqueID;
 };
 
 #endif