[DevTools] Reduce API surface of String16.

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/Platform.h"
 #include "platform/inspector_protocol/String16.h"
 #include "platform/v8_inspector/InjectedScript.h"
 #include "platform/v8_inspector/InspectedContext.h"
@@ skipping 421 matching lines @@
     if (V8InspectorClient* client = helper.ensureDebuggerClient()) {
         String16 protocolTitle = helper.firstArgToString("default");
         if (timelinePrefix)
             protocolTitle = "Timeline '" + protocolTitle + "'";
         client->consoleTimeEnd(protocolTitle);
 
         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";
+        String16 message = protocolTitle + ": " + String16::fromDoublePrecision3(elapsed) + "ms";
         helper.reportCallWithArgument(ConsoleAPIType::kTimeEnd, message);
     }
 }
 
 void V8Console::timelineCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ConsoleHelper(info).reportDeprecatedCall("V8Console#timeline", "'console.timeline' is deprecated. Please use 'console.time' instead.");
     timeFunction(info, true);
 }
 
@@ skipping 370 matching lines @@
             continue;
         if (name->IsString()) {
             v8::Local<v8::Value> descriptor;
             bool success = m_global->GetOwnPropertyDescriptor(m_context, v8::Local<v8::String>::Cast(name)).ToLocal(&descriptor);
             DCHECK(success);
         }
     }
 }
 
 } // namespace blink