Fix name conflicts in chef: Add namespace for chef window covering.

Author: sxb427

examples/chef/common/clusters/window-covering/chef-window-covering.cpp

@@ -29,6 +29,8 @@ using namespace chip;
 using namespace chip::app::Clusters;
 using chip::Protocols::InteractionModel::Status;
 
+namespace ChefWindowCovering {
+
 constexpr size_t kWindowCoveringDelegateTableSize = MATTER_DM_WINDOW_COVERING_CLUSTER_SERVER_ENDPOINT_COUNT;
 static_assert(kWindowCoveringDelegateTableSize <= kEmberInvalidEndpointIndex, "WindowCovering Delegate table size error");
 
@@ -68,6 +70,7 @@ void InitChefWindowCoveringCluster()
         WindowCovering::SetDefaultDelegate(endpointId, gDelegateTable[epIndex].get());
     }
 }
+} // namespace ChefWindowCovering
 
 CHIP_ERROR WindowCovering::ChefDelegate::HandleMovement(WindowCoveringType type)
 {

examples/chef/common/clusters/window-covering/chef-window-covering.h

@@ -65,4 +65,6 @@ class ChefDelegate : public Delegate
 } // namespace app
 } // namespace chip
 
+namespace ChefWindowCovering {
 void InitChefWindowCoveringCluster();
+} // namespace ChefWindowCovering

examples/chef/common/stubs.cpp

@@ -362,7 +362,7 @@ void ApplicationInit()
 
 #ifdef MATTER_DM_PLUGIN_WINDOW_COVERING_SERVER
     ChipLogProgress(NotSpecified, "Initializing WindowCovering cluster delegate.");
-    InitChefWindowCoveringCluster();
+    ChefWindowCovering::InitChefWindowCoveringCluster();
 #endif // MATTER_DM_PLUGIN_WINDOW_COVERING_SERVER
 }