Revert of Prevents double-clicks on a tab close button from aslo maximizing the browser

ui/views/widget/desktop_aura/x11_window_event_filter.cc

Index: ui/views/widget/desktop_aura/x11_window_event_filter.cc
diff --git a/ui/views/widget/desktop_aura/x11_window_event_filter.cc b/ui/views/widget/desktop_aura/x11_window_event_filter.cc
index 887bb979e0b16f3facdf5037d93f315cf05cf882..d6fbfc0fbd637fae65f7819bd45a7c5b19371605 100644
--- a/ui/views/widget/desktop_aura/x11_window_event_filter.cc
+++ b/ui/views/widget/desktop_aura/x11_window_event_filter.cc
@@ -68,8 +68,7 @@
       x_root_window_(DefaultRootWindow(xdisplay_)),
       atom_cache_(xdisplay_, kAtomsToCache),
       window_tree_host_(window_tree_host),
-      is_active_(false),
-      click_component_(HTNOWHERE) {
+      is_active_(false) {
 }
 
 X11WindowEventFilter::~X11WindowEventFilter() {
@@ -103,13 +102,8 @@
   if (!target->delegate())
     return;
 
-  int previous_click_component = HTNOWHERE;
   int component =
       target->delegate()->GetNonClientComponent(event->location());
-  if (event->IsLeftMouseButton()) {
-    previous_click_component = click_component_;
-    click_component_ = component;
-  }
   if (component == HTCLIENT)
     return;
 
@@ -140,18 +134,15 @@
   }
 
   // Left button case.
-  if (event->flags() & ui::EF_IS_DOUBLE_CLICK) {
-    click_component_ = HTNOWHERE;
-    if (component == HTCAPTION &&
-        target->GetProperty(aura::client::kCanMaximizeKey) &&
-        previous_click_component == component) {
-      // Our event is a double click in the caption area in a window that can be
-      // maximized. We are responsible for dispatching this as a minimize/
-      // maximize on X11 (Windows converts this to min/max events for us).
-      ToggleMaximizedState();
-      event->SetHandled();
-      return;
-    }
+  if (event->flags() & ui::EF_IS_DOUBLE_CLICK &&
+      component == HTCAPTION &&
+      target->GetProperty(aura::client::kCanMaximizeKey)) {
+    // Our event is a double click in the caption area in a window that can be
+    // maximized. We are responsible for dispatching this as a minimize/
+    // maximize on X11 (Windows converts this to min/max events for us).
+    ToggleMaximizedState();
+    event->SetHandled();
+    return;
   }
 
   // Get the |x_root_window_| location out of the native event.