components: Create web_modal component.

components/web_modal/web_contents_modal_dialog_manager_delegate.h

Index: components/web_modal/web_contents_modal_dialog_manager_delegate.h
diff --git a/chrome/browser/ui/web_contents_modal_dialog_manager_delegate.h b/components/web_modal/web_contents_modal_dialog_manager_delegate.h
similarity index 71%
rename from chrome/browser/ui/web_contents_modal_dialog_manager_delegate.h
rename to components/web_modal/web_contents_modal_dialog_manager_delegate.h
index 727e44732c8ff88de944a99f33cf224d799fe358..76f74354de598291f4f8315e3d0c5d64cfbc83de 100644
--- a/chrome/browser/ui/web_contents_modal_dialog_manager_delegate.h
+++ b/components/web_modal/web_contents_modal_dialog_manager_delegate.h
@@ -2,10 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_WEB_CONTENTS_MODAL_DIALOG_MANAGER_DELEGATE_H_
-#define CHROME_BROWSER_UI_WEB_CONTENTS_MODAL_DIALOG_MANAGER_DELEGATE_H_
-
-class WebContentsModalDialogHost;
+#ifndef COMPONENTS_WEB_MODAL_WEB_CONTENTS_MODAL_DIALOG_MANAGER_DELEGATE_H_
+#define COMPONENTS_WEB_MODAL_WEB_CONTENTS_MODAL_DIALOG_MANAGER_DELEGATE_H_
 
 namespace content {
 class WebContents;
@@ -15,6 +13,10 @@ namespace gfx {
 class Point;
 }
 
+namespace web_modal {
+
+class WebContentsModalDialogHost;
+
 class WebContentsModalDialogManagerDelegate {
  public:
   // Changes the blocked state of |web_contents|. WebContentses are considered
@@ -28,8 +30,13 @@ class WebContentsModalDialogManagerDelegate {
   // modal dialogs within the browser window.
   virtual WebContentsModalDialogHost* GetWebContentsModalDialogHost();
 
+  // Returns whether the WebContents is currently visible or not.
+  virtual bool IsWebContentsVisible(content::WebContents* web_contents);
+
  protected:
   virtual ~WebContentsModalDialogManagerDelegate();
 };
 
-#endif  // CHROME_BROWSER_UI_WEB_CONTENTS_MODAL_DIALOG_MANAGER_DELEGATE_H_
+}  // namespace web_modal
+
+#endif  // COMPONENTS_WEB_MODAL_WEB_CONTENTS_MODAL_DIALOG_MANAGER_DELEGATE_H_