[DevTools] add console.time/timeEnd default value for argument

third_party/WebKit/Source/platform/v8_inspector/V8Console.cpp

 // Copyright 2016 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.
 
 #include "platform/v8_inspector/V8Console.h"
 
 #include "platform/inspector_protocol/String16.h"
 #include "platform/v8_inspector/InjectedScript.h"
 #include "platform/v8_inspector/InspectedContext.h"
 #include "platform/v8_inspector/V8DebuggerAgentImpl.h"
@@ skipping 355 matching lines @@
 {
     ConsoleHelper helper(info);
     if (V8ProfilerAgentImpl* profilerAgent = helper.profilerAgent())
         profilerAgent->consoleProfileEnd(helper.firstArgToString(String16()));
 }
 
 static void timeFunction(const v8::FunctionCallbackInfo<v8::Value>& info, bool timelinePrefix)
 {
     ConsoleHelper helper(info);
     if (V8DebuggerClient* client = helper.ensureDebuggerClient()) {
-        String16 protocolTitle = helper.firstArgToString(String16());
+        String16 protocolTitle = helper.firstArgToString("default");
         if (timelinePrefix)
             protocolTitle = "Timeline '" + protocolTitle + "'";
         client->consoleTime(protocolTitle);
 
-        if (info.Length() < 1)
-            return;
         v8::Local<v8::Map> timeMap;
         if (!helper.privateMap("V8Console#timeMap").ToLocal(&timeMap))
             return;
         helper.setDoubleOnMap(timeMap, protocolTitle, client->currentTimeMS());
     }
 }
 
 static void timeEndFunction(const v8::FunctionCallbackInfo<v8::Value>& info, bool timelinePrefix)
 {
     ConsoleHelper helper(info);
     if (V8DebuggerClient* client = helper.ensureDebuggerClient()) {
-        String16 protocolTitle = helper.firstArgToString(String16());
+        String16 protocolTitle = helper.firstArgToString("default");
         if (timelinePrefix)
             protocolTitle = "Timeline '" + protocolTitle + "'";
         client->consoleTimeEnd(protocolTitle);
 
-        if (info.Length() < 1)
-            return;
         v8::Local<v8::Map> timeMap;
         if (!helper.privateMap("V8Console#timeMap").ToLocal(&timeMap))
             return;
         double elapsed = client->currentTimeMS() - helper.getDoubleFromMap(timeMap, protocolTitle, 0.0);
         String16 message = protocolTitle + ": " + String16::fromDoubleFixedPrecision(elapsed, 3) + "ms";
         helper.addMessage(TimeEndMessageType, DebugMessageLevel, message);
     }
 }
 
 void V8Console::timelineCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
@@ skipping 302 matching lines @@
     DEFINE_STATIC_LOCAL(protocol::HashSet<String16>, getters, ());
     if (getters.size() == 0) {
         const char* members[] = { "$0", "$1", "$2", "$3", "$4", "$_" };
         for (size_t i = 0; i < WTF_ARRAY_LENGTH(members); ++i)
             getters.add(members[i]);
     }
     return getters.find(name) != getters.end();
 }
 
 } // namespace blink