Fix compilation failure due to overload of virtual function

Compilation failure is result to overloaded-virtual warning
treated as error.

BUG=

Review-Url: https://codereview.chromium.org/2895923002
Cr-Commit-Position: refs/heads/master@{#45525}

src/d8.cc

@@ -135,6 +135,7 @@ class ShellArrayBufferAllocator : public ArrayBufferAllocatorBase {
     return malloc(length);
 #endif
   }
+  using ArrayBufferAllocatorBase::Free;
   void Free(void* data, size_t length) override {
 #if USE_VM
     if (RoundToPageSize(&length)) {

test/mkgrokdump/mkgrokdump.cc

@@ -37,7 +37,11 @@ class MockArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
  public:
   void* Allocate(size_t length) override { return nullptr; }
   void* AllocateUninitialized(size_t length) override { return nullptr; }
+  void* Reserve(size_t length) override { return nullptr; }
+  void Free(void* data, size_t length, AllocationMode mode) override {}
   void Free(void* p, size_t) override {}
+  void SetProtection(void* data, size_t length,
+                     Protection protection) override {}
 };
 
 static int DumpHeapConstants(const char* argv0) {

test/unittests/value-serializer-unittest.cc

@@ -1894,7 +1894,11 @@ class OOMArrayBufferAllocator : public ArrayBuffer::Allocator {
  public:
   void* Allocate(size_t) override { return nullptr; }
   void* AllocateUninitialized(size_t) override { return nullptr; }
+  void* Reserve(size_t length) override { return nullptr; }
+  void Free(void* data, size_t length, AllocationMode mode) override {}
   void Free(void*, size_t) override {}
+  void SetProtection(void* data, size_t length,
+                     Protection protection) override {}
 };
 
 TEST_F(ValueSerializerTest, DecodeArrayBufferOOM) {