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

ppapi/c/private/ppb_pdf.h

 // Copyright (c) 2011 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 PPAPI_C_PRIVATE_PPB_PDF_H_
 #define PPAPI_C_PRIVATE_PPB_PDF_H_
 
 #include "ppapi/c/dev/ppb_font_dev.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
@@ skipping 140 matching lines @@
 
   PP_Bool(*IsFeatureEnabled)(PP_Instance instance, PP_PDFFeature feature);
 
   // Returns a resource image appropriate for a device with |scale| density.
   // Returns 0 (NULL resource) if there is no resource at that scale
   PP_Resource (*GetResourceImageForScale)(PP_Instance instance,
                                           PP_ResourceImage image_id,
                                           float scale);
 
   // Invoke password dialog for plugin.
- struct PP_Var (*ModalPromptForPassword)(PP_Instance instance,
-                                         struct PP_Var message);
+  struct PP_Var (*ModalPromptForPassword)(PP_Instance instance,
+                                          struct PP_Var message);
 
- // Returns PP_TRUE if the plugin is out of process.
- PP_Bool(*IsOutOfProcess)(PP_Instance instance);
+  // Returns PP_TRUE if the plugin is out of process.
+  PP_Bool (*IsOutOfProcess)(PP_Instance instance);
 
   // Sets the selected text of the plugin.
   void(*SetSelectedText)(PP_Instance instance, const char* selected_text);
 
   // Sets the link currently under the cursor.
   void (*SetLinkUnderCursor)(PP_Instance instance, const char* url);
 };
 
 #endif  // PPAPI_C_PRIVATE_PPB_PDF_H_