Add UMA metrics to measure the effectiveness of views fuzzing

chrome/browser/ui/views/tabs/tab.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.h"
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/debug/alias.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 #include "chrome/browser/ui/tabs/tab_resources.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/tabs/tab_controller.h"
 #include "chrome/browser/ui/views/theme_image_mapper.h"
+#include "chrome/browser/ui/views/touch_uma/touch_uma.h"
 #include "chrome/common/chrome_switches.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "grit/ui_resources.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/animation/animation_container.h"
 #include "ui/base/animation/multi_animation.h"
 #include "ui/base/animation/slide_animation.h"
 #include "ui/base/animation/throb_animation.h"
@@ skipping 420 matching lines @@
 
 Tab::Tab(TabController* controller)
     : controller_(controller),
       closing_(false),
       dragging_(false),
       favicon_hiding_offset_(0),
       loading_animation_frame_(0),
       immersive_loading_step_(0),
       should_display_crashed_favicon_(false),
       theme_provider_(NULL),
+      tab_activated_with_last_gesture_begin_(false),
       hover_controller_(this),
       showing_icon_(false),
       showing_close_button_(false),
       close_button_color_(0) {
   InitTabResources();
 
   // So we get don't get enter/exit on children and don't prematurely stop the
   // hover.
   set_notify_enter_exit_on_child(true);
 
@@ skipping 234 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Tab, views::ButtonListener overrides:
 
 void Tab::ButtonPressed(views::Button* sender, const ui::Event& event) {
   const CloseTabSource source =
       (event.type() == ui::ET_MOUSE_RELEASED &&
        (event.flags() & ui::EF_FROM_TOUCH) == 0) ? CLOSE_TAB_FROM_MOUSE :
       CLOSE_TAB_FROM_TOUCH;
   DCHECK_EQ(close_button_, sender);
   controller()->CloseTab(this, source);
+  if (event.type() == ui::ET_GESTURE_TAP)
+    TouchUMA::RecordGestureAction(TouchUMA::GESTURE_TABCLOSE_TAP);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Tab, views::ContextMenuController overrides:
 
 void Tab::ShowContextMenuForView(views::View* source,
                                  const gfx::Point& point,
                                  ui::MenuSourceType source_type) {
   if (controller() && !closing())
     controller()->ShowContextMenuForTab(this, point, source_type);
@@ skipping 297 matching lines @@
   switch (event->type()) {
     case ui::ET_GESTURE_BEGIN: {
       if (event->details().touch_points() != 1)
         return;
 
       // See comment in OnMousePressed() as to why we copy the event.
       ui::GestureEvent event_in_parent(*event, static_cast<View*>(this),
                                        parent());
       ui::ListSelectionModel original_selection;
       original_selection.Copy(controller()->GetSelectionModel());
+      tab_activated_with_last_gesture_begin_ = !IsActive();
       if (!IsSelected())
         controller()->SelectTab(this);
       gfx::Point loc(event->location());
       views::View::ConvertPointToScreen(this, &loc);
       ui::GestureEvent cloned_event(event_in_parent, parent(),
                                     static_cast<View*>(this));
       controller()->MaybeStartDrag(this, cloned_event, original_selection);
       break;
     }
 
@@ skipping 780 matching lines @@
                          const gfx::ImageSkia& image) {
   DCHECK_NE(scale_factor, ui::SCALE_FACTOR_NONE);
   ImageCacheEntry entry;
   entry.resource_id = resource_id;
   entry.scale_factor = scale_factor;
   entry.image = image;
   image_cache_->push_front(entry);
   if (image_cache_->size() > kMaxImageCacheSize)
     image_cache_->pop_back();
 }