DevTools: generate string16-based handlers for v8_inspector.

third_party/WebKit/Source/platform/v8_inspector/public/V8DebuggerClient.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8DebuggerClient_h
 #define V8DebuggerClient_h
 
 #include "platform/PlatformExport.h"
 #include "platform/v8_inspector/public/V8EventListenerInfo.h"
 
@@ skipping 10 matching lines @@
     virtual void unmuteWarningsAndDeprecations() = 0;
     virtual void eventListeners(v8::Local<v8::Value>, V8EventListenerInfoMap&) = 0;
     virtual bool callingContextCanAccessContext(v8::Local<v8::Context> calling, v8::Local<v8::Context> target) = 0;
 
     virtual v8::MaybeLocal<v8::Object> instantiateObject(v8::Local<v8::Function>) = 0;
     virtual v8::MaybeLocal<v8::Value> runCompiledScript(v8::Local<v8::Context>, v8::Local<v8::Script>) = 0;
     virtual v8::MaybeLocal<v8::Value> compileAndRunInternalScript(v8::Local<v8::String>) = 0;
     virtual v8::MaybeLocal<v8::Value> callFunction(v8::Local<v8::Function>, v8::Local<v8::Context>, v8::Local<v8::Value> receiver, int argc, v8::Local<v8::Value> info[]) = 0;
     virtual v8::MaybeLocal<v8::Value> callInternalFunction(v8::Local<v8::Function>, v8::Local<v8::Value> receiver, int argc, v8::Local<v8::Value> info[]) = 0;
 
-    virtual String valueSubtype(v8::Local<v8::Value>) = 0;
+    virtual String16 valueSubtype(v8::Local<v8::Value>) = 0;
     virtual bool formatAccessorsAsProperties(v8::Local<v8::Value>) = 0;
     virtual bool hasRecursionLevel() = 0;
     virtual double currentTimeMS() = 0;
 };
 
 } // namespace blink
 
 
 #endif // V8DebuggerClient_h