Fix overrides for Windows

Add not yet implemented overrides to render_widget_host_view_qt.h.
Remove ambiguous and unneeded override from browser_context_qt.h.

Change-Id: Id1cac9bf811d8e128e5ba8df059f7ca3bdd919dc
Reviewed-by: Michael Bruning <michael.bruning@digia.com>
Reviewed-by: Pierre Rossi <pierre.rossi@gmail.com>
Reviewed-by: Andras Becsi <andras.becsi@digia.com>

src/core/browser_context_qt.h

@@ -77,7 +77,7 @@ public:
         downloadManagerDelegate.reset(new DownloadManagerDelegateQt);
     }
 
-    virtual ~BrowserContextQt() Q_DECL_OVERRIDE
+    virtual ~BrowserContextQt()
     {
         if (resourceContext)
             content::BrowserThread::DeleteSoon(content::BrowserThread::IO, FROM_HERE, resourceContext.release());

src/core/render_widget_host_view_qt.h

@@ -199,6 +199,11 @@ public:
     virtual void HasTouchEventHandlers(bool) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
 #endif // defined(OS_ANDROID)
 
+#if defined(OS_WIN)
+    virtual void SetClickthroughRegion(SkRegion *) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
+    virtual void WillWmDestroy(void) Q_DECL_OVERRIDE { QT_NOT_YET_IMPLEMENTED }
+#endif // defined(OS_WIN)
+
 private:
     void sendDelegatedFrameAck();
     void Paint(const gfx::Rect& damage_rect);