Add Startup.BrowserView.FirstPaint / .CompositingEnded histograms.

chrome/browser/ui/views/frame/browser_view.cc

 // Copyright 2012 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 "chrome/browser/ui/views/frame/browser_view.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 34 matching lines @@
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
 #include "chrome/browser/ui/bookmarks/bookmark_bar_constants.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_command_controller.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_list.h"
+#include "chrome/browser/ui/browser_view_histogram_helper.h"
 #include "chrome/browser/ui/browser_window_state.h"
 #include "chrome/browser/ui/sync/bubble_sync_promo_delegate.h"
 #include "chrome/browser/ui/tabs/tab_menu_model.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/accelerator_table.h"
 #include "chrome/browser/ui/views/accessibility/invert_bubble_view.h"
 #include "chrome/browser/ui/views/bookmarks/bookmark_bar_view.h"
 #include "chrome/browser/ui/views/bookmarks/bookmark_bubble_view.h"
 #include "chrome/browser/ui/views/download/download_in_progress_dialog_view.h"
@@ skipping 346 matching lines @@
       toolbar_(nullptr),
       find_bar_host_view_(nullptr),
       infobar_container_(nullptr),
       contents_web_view_(nullptr),
       devtools_web_view_(nullptr),
       contents_container_(nullptr),
       initialized_(false),
       handling_theme_changed_(false),
       in_process_fullscreen_(false),
       force_location_bar_focus_(false),
-      activate_modal_dialog_factory_(this) {
-}
+      histogram_helper_(base::MakeUnique<BrowserViewHistogramHelper>()),
+      activate_modal_dialog_factory_(this) {}
 
 BrowserView::~BrowserView() {
   // All the tabs should have been destroyed already. If we were closed by the
   // OS with some tabs than the NativeBrowserFrame should have destroyed them.
   DCHECK_EQ(0, browser_->tab_strip_model()->count());
 
   // Stop the animation timer explicitly here to avoid running it in a nested
   // message loop, which may run by Browser destructor.
   loading_animation_timer_.Stop();
 
@@ skipping 1555 matching lines @@
 }
 
 void BrowserView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (!initialized_ && details.is_add && details.child == this && GetWidget()) {
     InitViews();
     initialized_ = true;
   }
 }
 
+void BrowserView::PaintChildren(const ui::PaintContext& context) {
+  views::ClientView::PaintChildren(context);
+  histogram_helper_->OnDidPaintChildren(GetWidget()->GetCompositor());
+}
+
 void BrowserView::ChildPreferredSizeChanged(View* child) {
   Layout();
 }
 
 void BrowserView::GetAccessibleNodeData(ui::AXNodeData* node_data) {
   node_data->role = ui::AX_ROLE_CLIENT;
 }
 
 void BrowserView::OnThemeChanged() {
   if (!IsRegularOrGuestSession()) {
@@ skipping 676 matching lines @@
 }
 
 extensions::ActiveTabPermissionGranter*
 BrowserView::GetActiveTabPermissionGranter() {
   content::WebContents* web_contents = GetActiveWebContents();
   if (!web_contents)
     return nullptr;
   return extensions::TabHelper::FromWebContents(web_contents)
       ->active_tab_permission_granter();
 }