Move the web dialogs code to src/ui/web_dialogs from src/chrome

ui/web_dialogs/constrained_web_dialog_ui.h

Index: ui/web_dialogs/constrained_web_dialog_ui.h
diff --git a/chrome/browser/ui/webui/constrained_web_dialog_ui.h b/ui/web_dialogs/constrained_web_dialog_ui.h
similarity index 89%
rename from chrome/browser/ui/webui/constrained_web_dialog_ui.h
rename to ui/web_dialogs/constrained_web_dialog_ui.h
index 96b68af007ed8b8aca22023f5b79ca2dd427038e..2eb50b33a57c1f0208fedc240446af56869534da 100644
--- a/chrome/browser/ui/webui/constrained_web_dialog_ui.h
+++ b/ui/web_dialogs/constrained_web_dialog_ui.h
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_WEBUI_CONSTRAINED_WEB_DIALOG_UI_H_
-#define CHROME_BROWSER_UI_WEBUI_CONSTRAINED_WEB_DIALOG_UI_H_
+#ifndef UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
+#define UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/web_ui_controller.h"
+#include "ui/web_dialogs/web_dialogs_export.h"
 
 class ConstrainedWindow;
 class Profile;
 class TabContentsWrapper;
-class WebDialogDelegate;
 class WebDialogWebContentsDelegate;
 
 namespace base {
@@ -23,7 +23,10 @@ namespace content {
 class RenderViewHost;
 }
 
-class ConstrainedWebDialogDelegate {
+namespace ui {
+class WebDialogDelegate;
+
+class WEB_DIALOGS_EXPORT ConstrainedWebDialogDelegate {
  public:
   virtual const WebDialogDelegate* GetWebDialogDelegate() const = 0;
   virtual WebDialogDelegate* GetWebDialogDelegate() = 0;
@@ -55,7 +58,8 @@ class ConstrainedWebDialogDelegate {
 // implementations, this class is just a factory stub.
 // TODO(thestig) Refactor the platform-independent code out of the
 // platform-specific implementations.
-class ConstrainedWebDialogUI : public content::WebUIController {
+class WEB_DIALOGS_EXPORT ConstrainedWebDialogUI
+    : public content::WebUIController {
  public:
   explicit ConstrainedWebDialogUI(content::WebUI* web_ui);
   virtual ~ConstrainedWebDialogUI();
@@ -97,4 +101,6 @@ class ConstrainedWebDialogUI : public content::WebUIController {
   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogUI);
 };
 
-#endif  // CHROME_BROWSER_UI_WEBUI_CONSTRAINED_WEB_DIALOG_UI_H_
+}  // namespace ui
+
+#endif  // UI_WEB_DIALOGS_CONSTRAINED_WEB_DIALOG_UI_H_