Relanding "views: Add a gyp file to build webview.". Try 2.

ui/views/controls/webview/web_dialog_view.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_WEBVIEW_WEB_DIALOG_VIEW_H_
 #define UI_VIEWS_CONTROLS_WEBVIEW_WEB_DIALOG_VIEW_H_
 
 #include <string>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/gfx/size.h"
-#include "ui/views/views_export.h"
+#include "ui/views/controls/webview/webview_export.h"
 #include "ui/views/widget/widget_delegate.h"
 #include "ui/views/window/client_view.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 #include "ui/web_dialogs/web_dialog_web_contents_delegate.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace views {
 class WebView;
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // WebDialogView is a view used to display an web dialog to the user. The
 // content of the dialogs is determined by the delegate
 // (ui::WebDialogDelegate), but is basically a file URL along with a
 // JSON input string. The HTML is supposed to show a UI to the user and is
 // expected to send back a JSON file as a return value.
 //
 ////////////////////////////////////////////////////////////////////////////////
 //
 // TODO(akalin): Make WebDialogView contain an WebDialogWebContentsDelegate
 // instead of inheriting from it to avoid violating the "no multiple
 // inheritance" rule.
-class VIEWS_EXPORT WebDialogView : public views::ClientView,
-                                   public ui::WebDialogWebContentsDelegate,
-                                   public ui::WebDialogDelegate,
-                                   public views::WidgetDelegate {
+class WEBVIEW_EXPORT WebDialogView : public views::ClientView,
+                                     public ui::WebDialogWebContentsDelegate,
+                                     public ui::WebDialogDelegate,
+                                     public views::WidgetDelegate {
  public:
   // |handler| must not be NULL and this class takes the ownership.
   WebDialogView(content::BrowserContext* context,
                 ui::WebDialogDelegate* delegate,
                 WebContentsHandler* handler);
   virtual ~WebDialogView();
 
   // For testing.
   content::WebContents* web_contents();
 
@@ skipping 73 matching lines @@
   ui::WebDialogDelegate* delegate_;
 
   views::WebView* web_view_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDialogView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_WEBVIEW_WEB_DIALOG_VIEW_H_