Move User32 from CefSharp to CefSharp.WinForms

Author: amaitland

CefSharp.WinForms/CefSharp.WinForms.csproj

@@ -52,6 +52,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Internals\DefaultFocusHandler.cs" />
+    <Compile Include="Internals\User32.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="ChromiumWebBrowser.cs">
       <SubType>Component</SubType>

CefSharp.WinForms/ChromiumWebBrowser.cs

@@ -366,7 +366,7 @@ public override bool Focused
                 }
 
                 // Ask Windows which control has the focus and then check if it's one of our children
-                IntPtr focus = User32.GetFocus();
+                var focus = User32.GetFocus();
                 return focus != IntPtr.Zero && User32.IsChild(Handle, focus);
             }
         }

CefSharp/Internals/User32.cs renamed to CefSharp.WinForms/Internals/User32.cs

@@ -5,7 +5,7 @@
 using System;
 using System.Runtime.InteropServices;
 
-namespace CefSharp.Internals
+namespace CefSharp.WinForms.Internals
 {
     public static class User32
     {

CefSharp/CefSharp.csproj

@@ -90,7 +90,6 @@
   <ItemGroup>
     <Compile Include="CefFileDialogMode.cs" />
     <Compile Include="IFocusHandler.cs" />
-    <Compile Include="Internals\User32.cs" />
     <Compile Include="IsBrowserInitializedChangedEventArgs.cs" />
     <Compile Include="CefTerminationStatus.cs" />
     <Compile Include="IDialogHandler.cs" />