When we detect a PDF with an unsupported feature, ask the user if they want t...

webkit/plugins/ppapi/ppb_pdf_impl.cc

 // 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.
 
 #include "webkit/plugins/ppapi/ppb_pdf_impl.h"
 
 #include "app/resource_bundle.h"
 #include "base/metrics/histogram.h"
 #include "base/utf_string_conversions.h"
 #include "build/build_config.h"
@@ skipping 250 matching lines @@
 void HistogramPDFPageCount(int count) {
   UMA_HISTOGRAM_COUNTS_10000("PDF.PageCount", count);
 }
 
 void UserMetricsRecordAction(PP_Var action) {
   scoped_refptr<StringVar> action_str(StringVar::FromPPVar(action));
   if (action_str)
     webkit_glue::UserMetricsRecordAction(action_str->value());
 }
 
+void HasUnsupportedFeature(PP_Instance instance_id) {
+  PluginInstance* instance = ResourceTracker::Get()->GetInstance(instance_id);
+  if (!instance)
+    return;
+
+  // Only want to show an info bar if the pdf is the whole tab.
+  if (!instance->IsFullPagePlugin())
+    return;
+
+  instance->delegate()->HasUnsupportedFeature();
+}
+
 const PPB_PDF ppb_pdf = {
   &GetLocalizedString,
   &GetResourceImage,
   &GetFontFileWithFallback,
   &GetFontTableForPrivateFontFile,
   &SearchString,
   &DidStartLoading,
   &DidStopLoading,
   &SetContentRestriction,
   &HistogramPDFPageCount,
-  &UserMetricsRecordAction
+  &UserMetricsRecordAction,
+  &HasUnsupportedFeature
 };
 
 }  // namespace
 
 // static
 const PPB_PDF* PPB_PDF_Impl::GetInterface() {
   return &ppb_pdf;
 }
 
 #if defined(OS_LINUX)
 bool PrivateFontFile::GetFontTable(uint32_t table,
                                    void* output,
                                    uint32_t* output_length) {
   size_t temp_size = static_cast<size_t>(*output_length);
   bool rv = webkit_glue::GetFontTable(
       fd_, table, static_cast<uint8_t*>(output), &temp_size);
   *output_length = static_cast<uint32_t>(temp_size);
   return rv;
 }
 #endif
 
 }  // namespace ppapi
 }  // namespace webkit