Core: Move the titlebar / statusbar abstraction to DolphinWX

The concept of a "title bar" / "status bar" shouldn't be a core concept,
so remove the Host_UpdateStatusBar function, and move the code handles
whether to update the status bar or titlebar into DolphinWX.

Source/Core/Core/Core.cpp

@@ -682,7 +682,6 @@ void UpdateTitle()
 	}
 	// This is our final "frame counter" string
 	std::string SMessage = StringFromFormat("%s | %s", SSettings.c_str(), SFPS.c_str());
-	std::string TMessage = StringFromFormat("%s | %s", scm_rev_str, SMessage.c_str());
 
 	// Update the audio timestretcher with the current speed
 	if (soundStream)
@@ -691,16 +690,7 @@ void UpdateTitle()
 		pMixer->UpdateSpeed((float)Speed / 100);
 	}
 
-	if (_CoreParameter.bRenderToMain &&
-		SConfig::GetInstance().m_InterfaceStatusbar)
-	{
-		Host_UpdateStatusBar(SMessage);
-		Host_UpdateTitle(scm_rev_str);
-	}
-	else
-	{
-		Host_UpdateTitle(TMessage);
-	}
+	Host_UpdateTitle(SMessage);
 }
 
 void Shutdown()

Source/Core/Core/Host.h

@@ -37,7 +37,6 @@ void Host_SetWiiMoteConnectionState(int _State);
 void Host_SysMessage(const char *fmt, ...);
 void Host_UpdateDisasmDialog();
 void Host_UpdateMainFrame();
-void Host_UpdateStatusBar(const std::string& text, int Filed = 0);
 void Host_UpdateTitle(const std::string& title);
 void Host_ShowVideoConfig(void* parent, const std::string& backend_name,
                           const std::string& config_name);

Source/Core/DolphinWX/Frame.cpp

@@ -628,6 +628,21 @@ WXLRESULT CFrame::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 }
 #endif
 
+void CFrame::UpdateTitle(const std::string &str)
+{
+	if (SConfig::GetInstance().m_LocalCoreStartupParameter.bRenderToMain &&
+	    SConfig::GetInstance().m_InterfaceStatusbar)
+	{
+		GetStatusBar()->SetStatusText(str, 0);
+		m_RenderFrame->SetTitle(scm_rev_str);
+	}
+	else
+	{
+		std::string titleStr = StringFromFormat("%s | %s", scm_rev_str, str.c_str());
+		m_RenderFrame->SetTitle(titleStr);
+	}
+}
+
 void CFrame::OnHostMessage(wxCommandEvent& event)
 {
 	switch (event.GetId())
@@ -642,8 +657,7 @@ void CFrame::OnHostMessage(wxCommandEvent& event)
 		break;
 
 	case IDM_UPDATETITLE:
-		if (m_RenderFrame != nullptr)
-			m_RenderFrame->SetTitle(event.GetString());
+		SetTitle(event.GetString());
 		break;
 
 	case IDM_WINDOWSIZEREQUEST:

Source/Core/DolphinWX/Frame.h

@@ -126,6 +126,7 @@ public:
 	void UpdateWiiMenuChoice(wxMenuItem *WiiMenuItem=nullptr);
 	void PopulateSavedPerspectives();
 	static void ConnectWiimote(int wm_idx, bool connect);
+	void UpdateTitle(const std::string &str);
 
 	const CGameListCtrl *GetGameListCtrl() const;
 

Source/Core/DolphinWX/Main.cpp

@@ -607,17 +607,6 @@ void Host_SetStartupDebuggingParameters()
 	StartUp.bEnableDebugging = main_frame->g_pCodeWindow ? true : false; // RUNNING_DEBUG
 }
 
-void Host_UpdateStatusBar(const std::string& text, int Field)
-{
-	wxCommandEvent event(wxEVT_HOST_COMMAND, IDM_UPDATESTATUSBAR);
-	// Set the event string
-	event.SetString(StrToWxStr(text));
-	// Update statusbar field
-	event.SetInt(Field);
-	// Post message
-	main_frame->GetEventHandler()->AddPendingEvent(event);
-}
-
 void Host_SetWiiMoteConnectionState(int _State)
 {
 	static int currentState = -1;

Source/Core/DolphinWX/MainAndroid.cpp

@@ -104,8 +104,6 @@ bool Host_RendererHasFocus()
 
 void Host_ConnectWiimote(int wm_idx, bool connect) {}
 
-void Host_UpdateStatusBar(const std::string& text, int filed){}
-
 void Host_SysMessage(const char *fmt, ...)
 {
 	va_list args;

Source/Core/DolphinWX/MainNoGUI.cpp

@@ -102,8 +102,6 @@ bool Host_RendererHasFocus()
 
 void Host_ConnectWiimote(int wm_idx, bool connect) {}
 
-void Host_UpdateStatusBar(const std::string& text, int filed){}
-
 void Host_SysMessage(const char *fmt, ...)
 {
 	va_list list;