Run SharedArrayBuffer WPT tests in virtual/sharedarraybuffer testsuite

third_party/WebKit/Source/bindings/core/v8/serialization/SerializedScriptValue.cpp

Index: third_party/WebKit/Source/bindings/core/v8/serialization/SerializedScriptValue.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/serialization/SerializedScriptValue.cpp b/third_party/WebKit/Source/bindings/core/v8/serialization/SerializedScriptValue.cpp
index e32d2618de97c87eae75ff8b55c52a9efb07ab0c..48b8aedf5ba36e77960666c4f3c70efe9e0393a1 100644
--- a/third_party/WebKit/Source/bindings/core/v8/serialization/SerializedScriptValue.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/serialization/SerializedScriptValue.cpp
@@ -30,6 +30,7 @@
 
 #include "bindings/core/v8/serialization/SerializedScriptValue.h"
 
+#include <algorithm>
 #include <memory>
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/IDLTypes.h"
@@ -443,6 +444,25 @@ bool SerializedScriptValue::ExtractTransferables(
   return true;
 }
 
+ArrayBufferArray SerializedScriptValue::ExtractNonSharedArrayBuffers(
+    Transferables& transferables) {
+  ArrayBufferArray& array_buffers = transferables.array_buffers;
+  ArrayBufferArray result;
+  // Partition array_buffers into [shared..., non_shared...], maintaining
+  // relative ordering of elements with the same predicate value.
+  auto non_shared_begin =
+      std::stable_partition(array_buffers.begin(), array_buffers.end(),
+                            [](Member<DOMArrayBufferBase>& array_buffer) {
+                              return array_buffer->IsShared();
+                            });
+  // Copy the non-shared array buffers into result, and remove them from
+  // array_buffers.
+  result.AppendRange(non_shared_begin, array_buffers.end());
+  array_buffers.erase(non_shared_begin - array_buffers.begin(),
+                      array_buffers.end() - non_shared_begin);
+  return result;
+}
+
 std::unique_ptr<SerializedScriptValue::ArrayBufferContentsArray>
 SerializedScriptValue::TransferArrayBufferContents(
     v8::Isolate* isolate,