Revert of [Ozone-GBM] Handle GPU crashes

ui/ozone/platform/dri/chromeos/native_display_delegate_dri.cc

Index: ui/ozone/platform/dri/chromeos/native_display_delegate_dri.cc
diff --git a/ui/ozone/platform/dri/chromeos/native_display_delegate_dri.cc b/ui/ozone/platform/dri/chromeos/native_display_delegate_dri.cc
index 02817f9d7d79f5458dc97828a2fa5536317607cd..17f582ce013455e12ea840f4e4bb41d668cd8a38 100644
--- a/ui/ozone/platform/dri/chromeos/native_display_delegate_dri.cc
+++ b/ui/ozone/platform/dri/chromeos/native_display_delegate_dri.cc
@@ -51,23 +51,6 @@
   NOTREACHED();
   return 0;
 }
-
-class DisplaySnapshotComparator {
- public:
-  DisplaySnapshotComparator(const DisplaySnapshotDri* snapshot)
-      : snapshot_(snapshot) {}
-
-  bool operator()(const DisplaySnapshotDri* other) const {
-    if (snapshot_->connector() == other->connector() &&
-        snapshot_->crtc() == other->crtc())
-      return true;
-
-    return false;
-  }
-
- private:
-  const DisplaySnapshotDri* snapshot_;
-};
 
 }  // namespace
 
@@ -305,25 +288,18 @@
     const std::vector<DisplaySnapshotDri*>& new_displays,
     const std::vector<DisplaySnapshotDri*>& old_displays) const {
   for (size_t i = 0; i < old_displays.size(); ++i) {
-    const std::vector<DisplaySnapshotDri*>::const_iterator it =
-        std::find_if(new_displays.begin(),
-                     new_displays.end(),
-                     DisplaySnapshotComparator(old_displays[i]));
-
-    if (it == new_displays.end())
+    bool found = false;
+    for (size_t j = 0; j < new_displays.size(); ++j) {
+      if (old_displays[i]->connector() == new_displays[j]->connector() &&
+          old_displays[i]->crtc() == new_displays[j]->crtc()) {
+        found = true;
+        break;
+      }
+    }
+
+    if (!found)
       screen_manager_->RemoveDisplayController(old_displays[i]->crtc());
   }
-
-  for (size_t i = 0; i < new_displays.size(); ++i) {
-    const std::vector<DisplaySnapshotDri*>::const_iterator it =
-        std::find_if(old_displays.begin(),
-                     old_displays.end(),
-                     DisplaySnapshotComparator(new_displays[i]));
-
-    if (it == old_displays.end())
-      screen_manager_->AddDisplayController(new_displays[i]->crtc(),
-                                            new_displays[i]->connector());
-  }
 }
 
 }  // namespace ui