Add UMA metrics to measure the effectiveness of views fuzzing

chrome/browser/ui/views/tabs/tab_strip.cc

 // Copyright (c) 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/tabs/tab_strip.h"
 
 #if defined(OS_WIN)
 #include <windowsx.h>
 #endif
 
 #include <algorithm>
 #include <iterator>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/tabs/stacked_tab_strip_layout.h"
 #include "chrome/browser/ui/views/tabs/tab.h"
 #include "chrome/browser/ui/views/tabs/tab_drag_controller.h"
 #include "chrome/browser/ui/views/tabs/tab_strip_controller.h"
 #include "chrome/browser/ui/views/tabs/tab_strip_observer.h"
+#include "chrome/browser/ui/views/touch_uma/touch_uma.h"
 #include "content/public/browser/user_metrics.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/animation/animation_container.h"
 #include "ui/base/animation/throb_animation.h"
 #include "ui/base/default_theme_provider.h"
 #include "ui/base/dragdrop/drag_drop_types.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/layout.h"
@@ skipping 1450 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 // TabStrip, views::ButtonListener implementation:
 
 void TabStrip::ButtonPressed(views::Button* sender, const ui::Event& event) {
   if (sender == newtab_button_) {
     content::RecordAction(UserMetricsAction("NewTab_Button"));
     UMA_HISTOGRAM_ENUMERATION("Tab.NewTab", TabStripModel::NEW_TAB_BUTTON,
                               TabStripModel::NEW_TAB_ENUM_COUNT);
     controller()->CreateNewTab();
+    if (event.type() == ui::ET_GESTURE_TAP)
+      TouchUMA::RecordGestureAction(TouchUMA::GESTURE_NEWTAB_TAP);
   }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // TabStrip, protected:
 
 // Overridden to support automation. See automation_proxy_uitest.cc.
 const views::View* TabStrip::GetViewByID(int view_id) const {
   if (tab_count() > 0) {
     if (view_id == VIEW_ID_TAB_LAST) {
@@ skipping 68 matching lines @@
     }
 
     case ui::ET_GESTURE_SCROLL_UPDATE:
       ContinueDrag(this, *event);
       break;
 
     case ui::ET_GESTURE_BEGIN:
       EndDrag(END_DRAG_CANCEL);
       break;
 
+    case ui::ET_GESTURE_TAP: {
+      const int active_index = controller_->GetActiveIndex();
+      DCHECK_NE(-1, active_index);
+      Tab* active_tab = tab_at(active_index);
+      TouchUMA::GestureActionType action = TouchUMA::GESTURE_TABNOSWITCH_TAP;
+      if (active_tab->tab_activated_with_last_gesture_begin())
+        action = TouchUMA::GESTURE_TABSWITCH_TAP;
+      TouchUMA::RecordGestureAction(action);
+      break;
+    }
+
     default:
       break;
   }
   event->SetHandled();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // TabStrip, private:
 
 void TabStrip::Init() {
@@ skipping 1096 matching lines @@
   if (!adjust_layout_)
     return false;
 
 #if !defined(OS_CHROMEOS)
   if (ui::GetDisplayLayout() != ui::LAYOUT_TOUCH)
     return false;
 #endif
 
   return true;
 }