mandoline: Start adding trace events for mandoline stuff.

mandoline/ui/desktop_ui/browser_window.cc

 // Copyright 2015 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 "mandoline/ui/desktop_ui/browser_window.h"
 
 #include "base/command_line.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
+#include "base/trace_event/trace_event.h"
 #include "components/mus/public/cpp/event_matcher.h"
 #include "components/mus/public/cpp/scoped_window_ptr.h"
 #include "components/mus/public/cpp/window_tree_host_factory.h"
 #include "mandoline/ui/desktop_ui/browser_commands.h"
 #include "mandoline/ui/desktop_ui/browser_manager.h"
 #include "mandoline/ui/desktop_ui/find_bar_view.h"
 #include "mandoline/ui/desktop_ui/public/interfaces/omnibox.mojom.h"
 #include "mandoline/ui/desktop_ui/toolbar_view.h"
 #include "mojo/common/common_type_converters.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
@@ skipping 86 matching lines @@
 }
 
 void BrowserWindow::Close() {
   if (root_)
     mus::ScopedWindowPtr::DeleteWindowOrWindowManager(root_);
   else
     delete this;
 }
 
 void BrowserWindow::ShowOmnibox() {
+  TRACE_EVENT0("desktop_ui", "BrowserWindow::ShowOmnibox");
   if (!omnibox_.get()) {
     mojo::URLRequestPtr request(mojo::URLRequest::New());
     request->url = mojo::String::From("mojo:omnibox");
     omnibox_connection_ = app_->ConnectToApplication(request.Pass());
     omnibox_connection_->AddService<ViewEmbedder>(this);
     omnibox_connection_->ConnectToService(&omnibox_);
     omnibox_connection_->SetRemoteServiceProviderConnectionErrorHandler(
       [this]() {
         // This will cause the connection to be re-established the next time
         // we come through this codepath.
         omnibox_.reset();
     });
   }
   omnibox_->ShowForURL(mojo::String::From(current_url_.spec()));
 }
 
 void BrowserWindow::ShowFind() {
+  TRACE_EVENT0("desktop_ui", "BrowserWindow::ShowFind");
   toolbar_view_->SetVisible(false);
   find_bar_view_->Show();
 }
 
 void BrowserWindow::GoBack() {
+  TRACE_EVENT0("desktop_ui", "BrowserWindow::GoBack");
   web_view_.web_view()->GoBack();
 }
 
 void BrowserWindow::GoForward() {
+  TRACE_EVENT0("desktop_ui", "BrowserWindow::GoForward");
   web_view_.web_view()->GoForward();
 }
 
 BrowserWindow::~BrowserWindow() {
   DCHECK(!root_);
   manager_->BrowserWindowClosed(this);
 }
 
 float BrowserWindow::DIPSToPixels(float value) const {
   return value * root_->viewport_metrics().device_pixel_ratio;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // BrowserWindow, mus::ViewTreeDelegate implementation:
 
 void BrowserWindow::OnEmbed(mus::Window* root) {
+  TRACE_EVENT0("desktop_ui", "BrowserWindow::OnEmbed");
   // BrowserWindow does not support being embedded more than once.
   CHECK(!root_);
 
   // Record when the browser window was displayed, used for performance testing.
   const base::Time display_time = base::Time::Now();
 
   root_ = root;
 
   host_->SetTitle("Mandoline");
 
@@ skipping 245 matching lines @@
   omnibox_view_->Embed(view_tree_client.Pass());
 
   // TODO(beng): This should be handled sufficiently by
   //             OmniboxImpl::ShowWindow() but unfortunately view manager policy
   //             currently prevents the embedded app from changing window z for
   //             its own window.
   omnibox_view_->MoveToFront();
 }
 
 }  // namespace mandoline