Add private PPAPI interfaces for PDFium accessibility.

ppapi/cpp/private/pdf.cc

 // Copyright (c) 2013 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.
 
 #include "ppapi/cpp/private/pdf.h"
 
 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
 #include "ppapi/cpp/image_data.h"
 #include "ppapi/cpp/instance_handle.h"
 #include "ppapi/cpp/module_impl.h"
@@ skipping 134 matching lines @@
         natives_data_out, natives_size_out, snapshot_data_out,
         snapshot_size_out);
     return;
   }
   *natives_data_out = NULL;
   *snapshot_data_out = NULL;
   *natives_size_out = 0;
   *snapshot_size_out = 0;
 }
 
+// static
+void PDF::SetAccessibilityViewportInfo(
+    const InstanceHandle& instance,
+    PP_PrivateAccessibilityViewportInfo* viewport_info) {
+  if (has_interface<PPB_PDF>()) {
+    get_interface<PPB_PDF>()->SetAccessibilityViewportInfo(
+        instance.pp_instance(), viewport_info);
+  }
+}
+
+// static
+void PDF::SetAccessibilityDocInfo(const InstanceHandle& instance,
+                                  PP_PrivateAccessibilityDocInfo* doc_info) {
+  if (has_interface<PPB_PDF>()) {
+    get_interface<PPB_PDF>()->SetAccessibilityDocInfo(instance.pp_instance(),
+                                                      doc_info);
+  }
+}
+
+// static
+void PDF::SetAccessibilityPageInfo(
+    const InstanceHandle& instance,
+    PP_PrivateAccessibilityPageInfo* page_info,
+    PP_PrivateAccessibilityTextRunInfo text_runs[],
+    PP_PrivateAccessibilityCharInfo chars[]) {
+  if (has_interface<PPB_PDF>()) {
+    get_interface<PPB_PDF>()->SetAccessibilityPageInfo(
+        instance.pp_instance(), page_info, text_runs, chars);
+  }
+}
+
 }  // namespace pp