skia: Add runtime option to disable picture IO security precautions

src/core/SkPicture.cpp

Index: src/core/SkPicture.cpp
diff --git a/src/core/SkPicture.cpp b/src/core/SkPicture.cpp
index 6c1f6cb759ee5f9338877e2bf3ea5bb37dc03ae8..1a8de22907b40822f2911cfa66f8e7a991103fce 100644
--- a/src/core/SkPicture.cpp
+++ b/src/core/SkPicture.cpp
@@ -13,6 +13,13 @@
 #include "SkPictureRecord.h"
 #include "SkPictureRecorder.h"
 
+#if defined(SK_DISALLOW_CROSSPROCESS_PICTUREIMAGEFILTERS) || \
+    defined(SK_ENABLE_PICTURE_IO_SECURITY_PRECAUTIONS)
+static bool g_AllPictureIOSecurityPrecautionsEnabled = true;
+#else
+static bool g_AllPictureIOSecurityPrecautionsEnabled = false;
+#endif
+
 DECLARE_SKMESSAGEBUS_MESSAGE(SkPicture::DeletionMessage);
 
 /* SkPicture impl.  This handles generic responsibilities like unique IDs and serialization. */
@@ -196,3 +203,12 @@ bool SkPicture::suitableForGpuRasterization(GrContext*, const char** whyNot) con
     }
     return true;
 }
+
+// Global setting to disable security precautions for serialization.
+void SkPicture::SetPictureIOSecurityPrecautionsEnabled_Dangerous(bool set) {
+    g_AllPictureIOSecurityPrecautionsEnabled = set;
+}
+
+bool SkPicture::PictureIOSecurityPrecautionsEnabled() {
+    return g_AllPictureIOSecurityPrecautionsEnabled;
+}