[inspector] change implementation file extension from cpp to cc

src/inspector/remote-object-id.cc

 // Copyright 2015 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/inspector/RemoteObjectId.h"
+#include "src/inspector/remote-object-id.h"
 
-#include "src/inspector/StringUtil.h"
 #include "src/inspector/protocol/Protocol.h"
+#include "src/inspector/string-util.h"
 
 namespace v8_inspector {
 
 RemoteObjectIdBase::RemoteObjectIdBase() : m_injectedScriptId(0) {}
 
 std::unique_ptr<protocol::DictionaryValue>
 RemoteObjectIdBase::parseInjectedScriptId(const String16& objectId) {
   std::unique_ptr<protocol::Value> parsedValue = protocol::parseJSON(objectId);
   if (!parsedValue || parsedValue->type() != protocol::Value::TypeObject)
     return nullptr;
@@ skipping 48 matching lines @@
   return result;
 }
 
 String16 RemoteCallFrameId::serialize(int injectedScriptId, int frameOrdinal) {
   return "{\"ordinal\":" + String16::fromInteger(frameOrdinal) +
          ",\"injectedScriptId\":" + String16::fromInteger(injectedScriptId) +
          "}";
 }
 
 }  // namespace v8_inspector