Revert of [Ozone-GBM] Handle GPU crashes

ui/ozone/platform/dri/dri_window_delegate_proxy.cc

Index: ui/ozone/platform/dri/dri_window_delegate_proxy.cc
diff --git a/ui/ozone/platform/dri/dri_window_delegate_proxy.cc b/ui/ozone/platform/dri/dri_window_delegate_proxy.cc
index cf2421850551f915d1f8f6ac36254d888927f8b6..297bbd7fd1973fb0908c897fcce7c701af60db7a 100644
--- a/ui/ozone/platform/dri/dri_window_delegate_proxy.cc
+++ b/ui/ozone/platform/dri/dri_window_delegate_proxy.cc
@@ -12,23 +12,18 @@
 DriWindowDelegateProxy::DriWindowDelegateProxy(
     gfx::AcceleratedWidget widget,
     GpuPlatformSupportHostGbm* sender)
-    : widget_(widget), sender_(sender), has_connection_(false) {
+    : widget_(widget), sender_(sender) {
 }
 
 DriWindowDelegateProxy::~DriWindowDelegateProxy() {
 }
 
 void DriWindowDelegateProxy::Initialize() {
-  TRACE_EVENT1("dri", "DriWindowDelegateProxy::Initialize", "widget", widget_);
-  sender_->AddChannelObserver(this);
+  bool status = sender_->Send(new OzoneGpuMsg_CreateWindowDelegate(widget_));
+  DCHECK(status);
 }
 
 void DriWindowDelegateProxy::Shutdown() {
-  TRACE_EVENT1("dri", "DriWindowDelegateProxy::Shutdown", "widget", widget_);
-  sender_->RemoveChannelObserver(this);
-  if (!has_connection_)
-    return;
-
   bool status = sender_->Send(new OzoneGpuMsg_DestroyWindowDelegate(widget_));
   DCHECK(status);
 }
@@ -43,34 +38,9 @@
 }
 
 void DriWindowDelegateProxy::OnBoundsChanged(const gfx::Rect& bounds) {
-  TRACE_EVENT2("dri",
-               "DriWindowDelegateProxy::OnBoundsChanged",
-               "widget",
-               widget_,
-               "bounds",
-               bounds.ToString());
-  bounds_ = bounds;
-  if (!has_connection_)
-    return;
-
   bool status =
       sender_->Send(new OzoneGpuMsg_WindowBoundsChanged(widget_, bounds));
   DCHECK(status);
 }
 
-void DriWindowDelegateProxy::OnChannelEstablished() {
-  TRACE_EVENT1(
-      "dri", "DriWindowDelegateProxy::OnChannelEstablished", "widget", widget_);
-  has_connection_ = true;
-  bool status = sender_->Send(new OzoneGpuMsg_CreateWindowDelegate(widget_));
-  DCHECK(status);
-  OnBoundsChanged(bounds_);
-}
-
-void DriWindowDelegateProxy::OnChannelDestroyed() {
-  TRACE_EVENT1(
-      "dri", "DriWindowDelegateProxy::OnChannelDestroyed", "widget", widget_);
-  has_connection_ = false;
-}
-
 }  // namespace ui