[WIP] Make content_shell run under Wayland

ui/ozone/platform/wayland/wayland_connection.cc

Index: ui/ozone/platform/wayland/wayland_connection.cc
diff --git a/ui/ozone/platform/wayland/wayland_connection.cc b/ui/ozone/platform/wayland/wayland_connection.cc
index b2fb1084f94ac6a7e27b5d4275e834108323d563..7bbc563e78816b09caa6218c14180c9e4b6fe477 100644
--- a/ui/ozone/platform/wayland/wayland_connection.cc
+++ b/ui/ozone/platform/wayland/wayland_connection.cc
@@ -24,7 +24,9 @@ const uint32_t kMaxShmVersion = 1;
 const uint32_t kMaxXdgShellVersion = 1;
 }  // namespace
 
-WaylandConnection::WaylandConnection() {}
+WaylandConnection* WaylandConnection::instance_ = nullptr;
+
+WaylandConnection::WaylandConnection() : output_observer_(nullptr) {}
 
 WaylandConnection::~WaylandConnection() {}
 
@@ -65,6 +67,7 @@ bool WaylandConnection::Initialize() {
     return false;
   }
 
+  instance_ = this;
   return true;
 }
 
@@ -139,6 +142,17 @@ WaylandConnection::GetOutputList() const {
   return output_list_;
 }
 
+void WaylandConnection::SetOutputObserver(
+    OzonePlatformScreenDelegate* observer) {
+  output_observer_ = observer;
+}
+
+void WaylandConnection::OnOutputGeometryChanged(int32_t name,
+                                                const gfx::Rect& rect) {
+  if (output_observer_)
+    output_observer_->OnOutputGeometryChanged(name, rect);
+}
+
 // static
 void WaylandConnection::Global(void* data,
                                wl_registry* registry,
@@ -193,7 +207,7 @@ void WaylandConnection::Global(void* data,
       NOTIMPLEMENTED() << "Multiple screens support is not implemented";
 
     connection->output_list_.push_back(
-        base::WrapUnique(new WaylandOutput(output.release())));
+        base::WrapUnique(new WaylandOutput(output.release(), name)));
   }
 
   connection->ScheduleFlush();