[EXPLORER] Use STDMETHODIMP and override (#7645)

Follow the standard way.
JIRA issue: CORE-19469
- Use STDMETHODIMP and override keyword
  instead of virtual HRESULT STDMETHODCALLTYPE.
- Delete CTaskBand::ProcessMessage and
  CTaskBand::ContainsWindow methods.
  I think they are useless.

base/shell/explorer/traywnd.cpp

@@ -3490,21 +3490,24 @@ HandleTrayContextMenu:
      *       with it (especially positioning of desktop icons)
      */
 
-    virtual ULONG STDMETHODCALLTYPE GetState()
+    STDMETHODIMP_(ULONG)
+    GetState() override
     {
         /* FIXME: Return ABS_ flags? */
         TRACE("IShellDesktopTray::GetState() unimplemented!\n");
         return 0;
     }
 
-    virtual HRESULT STDMETHODCALLTYPE GetTrayWindow(OUT HWND *phWndTray)
+    STDMETHODIMP
+    GetTrayWindow(OUT HWND *phWndTray) override
     {
         TRACE("IShellDesktopTray::GetTrayWindow(0x%p)\n", phWndTray);
         *phWndTray = m_hWnd;
         return S_OK;
     }
 
-    virtual HRESULT STDMETHODCALLTYPE RegisterDesktopWindow(IN HWND hWndDesktop)
+    STDMETHODIMP
+    RegisterDesktopWindow(IN HWND hWndDesktop) override
     {
         TRACE("IShellDesktopTray::RegisterDesktopWindow(0x%p)\n", hWndDesktop);
 
@@ -3512,7 +3515,8 @@ HandleTrayContextMenu:
         return S_OK;
     }
 
-    virtual HRESULT STDMETHODCALLTYPE Unknown(IN DWORD dwUnknown1, IN DWORD dwUnknown2)
+    STDMETHODIMP
+    Unknown(IN DWORD dwUnknown1, IN DWORD dwUnknown2) override
     {
         TRACE("IShellDesktopTray::Unknown(%u,%u) unimplemented!\n", dwUnknown1, dwUnknown2);
         return S_OK;
@@ -3524,7 +3528,10 @@ HandleTrayContextMenu:
         return S_OK;
     }
 
-    HRESULT WINAPI GetWindow(HWND* phwnd)
+    // *** IOleWindow methods ***
+
+    STDMETHODIMP
+    GetWindow(HWND* phwnd) override
     {
         if (!phwnd)
             return E_INVALIDARG;
@@ -3532,7 +3539,8 @@ HandleTrayContextMenu:
         return S_OK;
     }
 
-    HRESULT WINAPI ContextSensitiveHelp(BOOL fEnterMode)
+    STDMETHODIMP
+    ContextSensitiveHelp(BOOL fEnterMode) override
     {
         return E_NOTIMPL;
     }
@@ -3572,12 +3580,12 @@ public:
         return S_OK;
     }
 
-    virtual HRESULT STDMETHODCALLTYPE
-        QueryContextMenu(HMENU hPopup,
-                         UINT indexMenu,
-                         UINT idCmdFirst,
-                         UINT idCmdLast,
-                         UINT uFlags)
+    STDMETHODIMP
+    QueryContextMenu(HMENU hPopup,
+                     UINT indexMenu,
+                     UINT idCmdFirst,
+                     UINT idCmdLast,
+                     UINT uFlags) override
     {
         HMENU hMenuBase;
 
@@ -3632,8 +3640,8 @@ public:
         return S_OK;
     }
 
-    virtual HRESULT STDMETHODCALLTYPE
-        InvokeCommand(LPCMINVOKECOMMANDINFO lpici)
+    STDMETHODIMP
+    InvokeCommand(LPCMINVOKECOMMANDINFO lpici) override
     {
         UINT uiCmdId = PtrToUlong(lpici->lpVerb);
         if (uiCmdId != 0)
@@ -3662,12 +3670,13 @@ public:
         return S_OK;
     }
 
-    virtual HRESULT STDMETHODCALLTYPE
-        GetCommandString(UINT_PTR idCmd,
+    STDMETHODIMP
+    GetCommandString(
+        UINT_PTR idCmd,
         UINT uType,
         UINT *pwReserved,
         LPSTR pszName,
-        UINT cchMax)
+        UINT cchMax) override
     {
         return E_NOTIMPL;
     }