Only call managedCefBrowserAdapter.OnSizeChanged(Handle); when painting

Author: amaitland

CefSharp.WinForms/ChromiumWebBrowser.cs

@@ -55,10 +55,21 @@ public ChromiumWebBrowser(string address)
         {
             Cef.AddDisposable(this);
             Address = address;
+
+            Paint += OnPaint;
+        }
+
+        private void OnPaint(object sender, PaintEventArgs e)
+        {
+            // Size is 0x0 when we are on a modeless Form which is minimized.
+            if (!Size.IsEmpty && managedCefBrowserAdapter != null)
+                managedCefBrowserAdapter.OnSizeChanged(Handle);
         }
 
         protected override void Dispose(bool disposing)
         {
+            Paint -= OnPaint;
+
             Cef.RemoveDisposable(this);
 
             if (disposing)
@@ -137,15 +148,6 @@ protected override void OnHandleCreated(EventArgs e)
             managedCefBrowserAdapter.CreateBrowser(BrowserSettings ?? new BrowserSettings(), Handle, Address);
         }
 
-        protected override void OnSizeChanged(EventArgs e)
-        {
-            base.OnSizeChanged(e);
-
-            // Size is 0x0 when we are on a modeless Form which is minimized.
-            if (!Size.IsEmpty && managedCefBrowserAdapter != null)
-                managedCefBrowserAdapter.OnSizeChanged(Handle);
-        }
-
         void IWebBrowserInternal.SetAddress(string address)
         {
             Address = address;