Experiment to hide close buttons of inactive tabs when using touch

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

Index: chrome/browser/ui/views/tabs/tab.cc
diff --git a/chrome/browser/ui/views/tabs/tab.cc b/chrome/browser/ui/views/tabs/tab.cc
index 29841163c87a34db0b811cabbf7030e9156b44aa..50ec84bad663bdf2c376095fdbe5ba5031bfabb6 100644
--- a/chrome/browser/ui/views/tabs/tab.cc
+++ b/chrome/browser/ui/views/tabs/tab.cc
@@ -1431,21 +1431,24 @@ int Tab::IconCapacity() const {
 
 bool Tab::ShouldShowIcon() const {
   return chrome::ShouldTabShowFavicon(
-      IconCapacity(), data().mini, IsActive(), data().show_icon,
+      IconCapacity(), width(), controller_->TouchWasUsedAsLastInput(),
+      data().mini, IsActive(), data().show_icon,
       media_indicator_button_ ? media_indicator_button_->showing_media_state() :
                                 data_.media_state);
 }
 
 bool Tab::ShouldShowMediaIndicator() const {
   return chrome::ShouldTabShowMediaIndicator(
-      IconCapacity(), data().mini, IsActive(), data().show_icon,
+      IconCapacity(), width(), controller_->TouchWasUsedAsLastInput(),
+      data().mini, IsActive(), data().show_icon,
       media_indicator_button_ ? media_indicator_button_->showing_media_state() :
                                 data_.media_state);
 }
 
 bool Tab::ShouldShowCloseBox() const {
   return chrome::ShouldTabShowCloseButton(
-      IconCapacity(), data().mini, IsActive());
+      IconCapacity(), width(), controller_->TouchWasUsedAsLastInput(),
+          data().mini, IsActive());
 }
 
 double Tab::GetThrobValue() {