pdf: Create a separate component for using the pdf pepper plugin.

chrome/browser/ui/pdf/chrome_pdf_web_contents_helper_client.h

+// Copyright 2014 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 CHROME_BROWSER_UI_PDF_CHROME_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
+#define CHROME_BROWSER_UI_PDF_CHROME_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
+
+#include "base/macros.h"
+#include "components/pdf/browser/pdf_web_contents_helper_client.h"
+
+class ChromePDFWebContentsHelperClient
+    : public pdf::PDFWebContentsHelperClient {
+ public:
+  ChromePDFWebContentsHelperClient();
+  virtual ~ChromePDFWebContentsHelperClient();
+
+ private:
+  // pdf::PDFWebContentsHelperClient:
+  virtual void UpdateLocationBar(content::WebContents* contents) OVERRIDE;
+
+  virtual void UpdateContentRestrictions(content::WebContents* contents,
+                                         int content_restrictions) OVERRIDE;
+
+  virtual void OnPDFHasUnsupportedFeature(
+      content::WebContents* contents) OVERRIDE;
+
+  virtual void OnSaveURL(content::WebContents* contents) OVERRIDE;
+
+  virtual void OnShowPDFPasswordDialog(
+      content::WebContents* contents,
+      const base::string16& prompt,
+      const pdf::PasswordDialogClosedCallback& callback) OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromePDFWebContentsHelperClient);
+};
+
+void ShowPDFPasswordDialog(content::WebContents* web_contents,
+                           const base::string16& prompt,
+                           const pdf::PasswordDialogClosedCallback& callback);
+
+#endif  // CHROME_BROWSER_UI_PDF_CHROME_PDF_WEB_CONTENTS_HELPER_CLIENT_H_