[wasm] Enable content policy for wasm compilation.

src/snapshot/code-serializer.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/snapshot/code-serializer.h"
 
 #include <memory>
 
 #include "src/code-stubs.h"
 #include "src/log.h"
@@ skipping 231 matching lines @@
   Handle<WasmCompiledModule> compiled_module =
       Handle<WasmCompiledModule>::cast(input);
   WasmCompiledModuleSerializer wasm_cs(isolate, 0, isolate->native_context(),
                                        handle(compiled_module->module_bytes()));
   ScriptData* data = wasm_cs.Serialize(compiled_module);
   return std::unique_ptr<ScriptData>(data);
 }
 
 MaybeHandle<FixedArray> WasmCompiledModuleSerializer::DeserializeWasmModule(
     Isolate* isolate, ScriptData* data, Vector<const byte> wire_bytes) {
+  MaybeHandle<FixedArray> nothing;
+  if (!wasm::IsWasmCodegenAllowed(isolate, isolate->native_context())) {
+    return nothing;
+  }
   SerializedCodeData::SanityCheckResult sanity_check_result =
       SerializedCodeData::CHECK_SUCCESS;
-  MaybeHandle<FixedArray> nothing;
+
   const SerializedCodeData scd = SerializedCodeData::FromCachedData(
       isolate, data, 0, &sanity_check_result);
 
   if (sanity_check_result != SerializedCodeData::CHECK_SUCCESS) {
     return nothing;
   }
 
   Deserializer deserializer(&scd, true);
   deserializer.AddAttachedObject(isolate->native_context());
 
@@ skipping 207 matching lines @@
   *rejection_result = scd.SanityCheck(isolate, expected_source_hash);
   if (*rejection_result != CHECK_SUCCESS) {
     cached_data->Reject();
     return SerializedCodeData(nullptr, 0);
   }
   return scd;
 }
 
 }  // namespace internal
 }  // namespace v8