Add private PPAPI interfaces for PDFium accessibility.

ppapi/thunk/ppb_pdf_thunk.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 <stdint.h>
 
 #include "base/logging.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_pdf.h"
 #include "ppapi/thunk/enter.h"
@@ skipping 113 matching lines @@
                                int* natives_size_out,
                                const char** snapshot_data_out,
                                int* snapshot_size_out) {
   EnterInstanceAPI<PPB_PDF_API> enter(instance);
   if (enter.failed())
     return;
   enter.functions()->GetV8ExternalSnapshotData(natives_data_out,
       natives_size_out, snapshot_data_out, snapshot_size_out);
 }
 
+void SetAccessibilityViewportInfo(
+    PP_Instance instance,
+    PP_PrivateAccessibilityViewportInfo* viewport_info) {
+  EnterInstanceAPI<PPB_PDF_API> enter(instance);
+  if (enter.failed())
+    return;
+  enter.functions()->SetAccessibilityViewportInfo(viewport_info);
+}
+
+void SetAccessibilityDocInfo(
+    PP_Instance instance,
+    PP_PrivateAccessibilityDocInfo* doc_info) {
+  EnterInstanceAPI<PPB_PDF_API> enter(instance);
+  if (enter.failed())
+    return;
+  enter.functions()->SetAccessibilityDocInfo(doc_info);
+}
+
+void SetAccessibilityPageInfo(
+    PP_Instance instance,
+    PP_PrivateAccessibilityPageInfo* page_info,
+    PP_PrivateAccessibilityTextRunInfo text_runs[],
+    PP_PrivateAccessibilityCharInfo chars[]) {
+  EnterInstanceAPI<PPB_PDF_API> enter(instance);
+  if (enter.failed())
+    return;
+  enter.functions()->SetAccessibilityPageInfo(page_info, text_runs, chars);
+}
+
 const PPB_PDF g_ppb_pdf_thunk = {
   &GetFontFileWithFallback,
   &GetFontTableForPrivateFontFile,
   &SearchString,
   &DidStartLoading,
   &DidStopLoading,
   &SetContentRestriction,
   &UserMetricsRecordAction,
   &HasUnsupportedFeature,
   &SaveAs,
   &Print,
   &IsFeatureEnabled,
   &SetSelectedText,
   &SetLinkUnderCursor,
   &GetV8ExternalSnapshotData,
+  &SetAccessibilityViewportInfo,
+  &SetAccessibilityDocInfo,
+  &SetAccessibilityPageInfo
 };
 
 }  // namespace
 
 const PPB_PDF* GetPPB_PDF_Thunk() {
   return &g_ppb_pdf_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi