Revert of DevTools: fix mixed arguments in Tracing.bufferUsage event

content/browser/devtools/protocol/tracing_handler.cc

 // Copyright 2014 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 "content/browser/devtools/protocol/tracing_handler.h"
 
 #include <cmath>
 
 #include "base/bind.h"
 #include "base/format_macros.h"
@@ skipping 251 matching lines @@
                        "TracingStartedInBrowser", TRACE_EVENT_SCOPE_THREAD,
                        "frameTreeNodeId", frame_tree_node_id_);
   if (target_ != Renderer)
     callback->sendSuccess();
 }
 
 void TracingHandler::OnBufferUsage(float percent_full,
                                    size_t approximate_event_count) {
   // TODO(crbug426117): remove set_value once all clients have switched to
   // the new interface of the event.
-  frontend_->BufferUsage(percent_full, approximate_event_count, percent_full);
+  frontend_->BufferUsage(percent_full, percent_full, approximate_event_count);
 }
 
 void TracingHandler::OnCategoriesReceived(
     std::unique_ptr<GetCategoriesCallback> callback,
     const std::set<std::string>& category_set) {
   std::unique_ptr<protocol::Array<std::string>> categories =
       protocol::Array<std::string>::create();
   for (const std::string& category : category_set)
     categories->addItem(category);
   callback->sendSuccess(std::move(categories));
@@ skipping 76 matching lines @@
 
   std::string mode;
   if (tracing_dict->GetString(kRecordModeParam, &mode))
     tracing_dict->SetString(kRecordModeParam, ConvertFromCamelCase(mode, '-'));
 
   return base::trace_event::TraceConfig(*tracing_dict);
 }
 
 }  // namespace tracing
 }  // namespace protocol