Allow the PDF extension for chrome://print pages.

content/browser/webui/web_ui_data_source_impl.cc

 // Copyright (c) 2012 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 "content/browser/webui/web_ui_data_source_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <string>
@@ skipping 43 matching lines @@
       const URLDataSource::GotDataCallback& callback) override {
     return parent_->StartDataRequest(path, wc_getter, callback);
   }
   bool ShouldReplaceExistingSource() const override {
     return parent_->replace_existing_source_;
   }
   bool AllowCaching() const override { return false; }
   bool ShouldAddContentSecurityPolicy() const override {
     return parent_->add_csp_;
   }
+  std::string GetContentSecurityPolicyScriptSrc() const override {
+    if (parent_->script_src_set_)
+      return parent_->script_src_;
+    return URLDataSource::GetContentSecurityPolicyScriptSrc();
+  }
   std::string GetContentSecurityPolicyObjectSrc() const override {
     if (parent_->object_src_set_)
       return parent_->object_src_;
     return URLDataSource::GetContentSecurityPolicyObjectSrc();
   }
   std::string GetContentSecurityPolicyChildSrc() const override {
     if (parent_->frame_src_set_)
       return parent_->frame_src_;
     return URLDataSource::GetContentSecurityPolicyChildSrc();
   }
   bool ShouldDenyXFrameOptions() const override {
     return parent_->deny_xframe_options_;
   }
   bool IsGzipped(const std::string& path) const override {
     return parent_->use_gzip_for_all_paths_ &&
         parent_->excluded_paths_.find(path) == parent_->excluded_paths_.end();
   }
 
  private:
   WebUIDataSourceImpl* parent_;
 };
 
 WebUIDataSourceImpl::WebUIDataSourceImpl(const std::string& source_name)
     : URLDataSourceImpl(source_name, new InternalDataSource(this)),
       source_name_(source_name),
       default_resource_(-1),
       add_csp_(true),
+      script_src_set_(false),
       object_src_set_(false),
       frame_src_set_(false),
       deny_xframe_options_(true),
       add_load_time_data_defaults_(true),
       replace_existing_source_(true),
       use_gzip_for_all_paths_(false) {}
 
 WebUIDataSourceImpl::~WebUIDataSourceImpl() {
 }
 
@@ skipping 72 matching lines @@
 }
 
 void WebUIDataSourceImpl::ExcludePathFromGzip(const std::string& path) {
   excluded_paths_.insert(path);
 }
 
 void WebUIDataSourceImpl::DisableContentSecurityPolicy() {
   add_csp_ = false;
 }
 
+void WebUIDataSourceImpl::OverrideContentSecurityPolicyScriptSrc(
+    const std::string& data) {
+  script_src_set_ = true;
+  script_src_ = data;
+}
+
 void WebUIDataSourceImpl::OverrideContentSecurityPolicyObjectSrc(
     const std::string& data) {
   object_src_set_ = true;
   object_src_ = data;
 }
 
 void WebUIDataSourceImpl::OverrideContentSecurityPolicyChildSrc(
     const std::string& data) {
   frame_src_set_ = true;
   frame_src_ = data;
@@ skipping 81 matching lines @@
 }
 
 void WebUIDataSourceImpl::SendLocalizedStringsAsJSON(
     const URLDataSource::GotDataCallback& callback) {
   std::string template_data;
   webui::AppendJsonJS(&localized_strings_, &template_data);
   callback.Run(base::RefCountedString::TakeString(&template_data));
 }
 
 }  // namespace content