Add WebUIDataSourceImpl::DisableReplaceExistingSource

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 <string>
 
 #include "base/bind.h"
 #include "base/memory/ref_counted_memory.h"
@@ skipping 31 matching lines @@
     return parent_->GetMimeType(path);
   }
   virtual void StartDataRequest(
       const std::string& path,
       int render_process_id,
       int render_view_id,
       const URLDataSource::GotDataCallback& callback) OVERRIDE {
     return parent_->StartDataRequest(path, render_process_id, render_view_id,
                                      callback);
   }
+  virtual bool ShouldReplaceExistingSource() const OVERRIDE {
+    return parent_->replace_existing_source_;
+  }
   virtual bool ShouldAddContentSecurityPolicy() const OVERRIDE {
     return parent_->add_csp_;
   }
   virtual std::string GetContentSecurityPolicyObjectSrc() const OVERRIDE {
     if (parent_->object_src_set_)
       return parent_->object_src_;
     return URLDataSource::GetContentSecurityPolicyObjectSrc();
   }
   virtual std::string GetContentSecurityPolicyFrameSrc() const OVERRIDE {
     if (parent_->frame_src_set_)
@@ skipping 12 matching lines @@
     : URLDataSourceImpl(
           source_name,
           new InternalDataSource(this)),
       source_name_(source_name),
       default_resource_(-1),
       json_js_format_v2_(false),
       add_csp_(true),
       object_src_set_(false),
       frame_src_set_(false),
       deny_xframe_options_(true),
-      disable_set_font_strings_(false) {
+      disable_set_font_strings_(false),
+      replace_existing_source_(true) {
 }
 
 WebUIDataSourceImpl::~WebUIDataSourceImpl() {
 }
 
 void WebUIDataSourceImpl::AddString(const std::string& name,
                                     const string16& value) {
   localized_strings_.SetString(name, value);
 }
 
@@ skipping 32 matching lines @@
 
 void WebUIDataSourceImpl::SetDefaultResource(int resource_id) {
   default_resource_ = resource_id;
 }
 
 void WebUIDataSourceImpl::SetRequestFilter(
     const WebUIDataSource::HandleRequestCallback& callback) {
   filter_callback_ = callback;
 }
 
+void WebUIDataSourceImpl::DisableReplaceExistingSource() {
+  replace_existing_source_ = false;
+}
+
 void WebUIDataSourceImpl::DisableContentSecurityPolicy() {
   add_csp_ = false;
 }
 
 void WebUIDataSourceImpl::OverrideContentSecurityPolicyObjectSrc(
     const std::string& data) {
   object_src_set_ = true;
   object_src_ = data;
 }
 
@@ skipping 63 matching lines @@
 }
 
 void WebUIDataSourceImpl::SendFromResourceBundle(
     const URLDataSource::GotDataCallback& callback, int idr) {
   scoped_refptr<base::RefCountedStaticMemory> response(
       GetContentClient()->GetDataResourceBytes(idr));
   callback.Run(response.get());
 }
 
 }  // namespace content