Revert of [inspector] fix timestamp formatting with non C locales

src/inspector/v8-console.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/inspector/v8-console.h"
 
 #include "src/base/macros.h"
 #include "src/inspector/injected-script.h"
 #include "src/inspector/inspected-context.h"
 #include "src/inspector/string-util.h"
@@ skipping 413 matching lines @@
   if (V8InspectorClient* client = helper.ensureDebuggerClient()) {
     String16 protocolTitle = helper.firstArgToString("default");
     if (timelinePrefix) protocolTitle = "Timeline '" + protocolTitle + "'";
     client->consoleTimeEnd(toStringView(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::fromDouble(elapsed, 3) + "ms";
+        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 468 matching lines @@
                          ->GetOwnPropertyDescriptor(
                              m_context, v8::Local<v8::String>::Cast(name))
                          .ToLocal(&descriptor);
       DCHECK(success);
       USE(success);
     }
   }
 }
 
 }  // namespace v8_inspector