[WIP]Implement Chromium side changes for navigator.language(s) support for workers.

content/browser/shared_worker/shared_worker_host.cc

 // Copyright 2014 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/shared_worker/shared_worker_host.h"
 
 #include "base/metrics/histogram.h"
+#include "base/strings/string_split.h"
+#include "base/strings/utf_string_conversions.h"
 #include "content/browser/devtools/embedded_worker_devtools_manager.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/message_port_service.h"
 #include "content/browser/shared_worker/shared_worker_instance.h"
 #include "content/browser/shared_worker/shared_worker_message_filter.h"
 #include "content/browser/shared_worker/shared_worker_service_impl.h"
 #include "content/browser/shared_worker/worker_document_set.h"
 #include "content/common/view_messages.h"
 #include "content/common/worker_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_process_host.h"
+#include "content/public/browser/resource_context.h"
 #include "content/public/common/content_client.h"
+#include "net/url_request/static_http_user_agent_settings.h"
+#include "net/url_request/url_request_context.h"
 
 namespace content {
 namespace {
 
 // Notifies RenderViewHost that one or more worker objects crashed.
 void WorkerCrashCallback(int render_process_unique_id, int render_frame_id) {
   RenderFrameHostImpl* host =
       RenderFrameHostImpl::FromID(render_process_unique_id, render_frame_id);
   if (host)
     host->delegate()->WorkerCrashed(host);
@@ skipping 33 matching lines @@
         FROM_HERE,
         base::Bind(NotifyWorkerDestroyed, worker_process_id, worker_route_id));
     return;
   }
   EmbeddedWorkerDevToolsManager::GetInstance()->WorkerDestroyed(
       worker_process_id, worker_route_id);
 }
 
 }  // namespace
 
+static std::string HttpAcceptHeaderToAcceptLanguagesString(
+  const std::string& http_accept_languages,const std::string& default_language)
+{
+    std::vector<string> languages;
+
+    if (!http_accept_languages.length()) {
+        return default_language;
+    }
+    base::SplitString(http_accept_languages, ',', &languages);
+
+    std::string accept_languages_string;
+    for(unsigned int i = 0; i < languages.size(); i++) {
+        std::string lang = languages[i];
+        size_t semi_colon_pos = lang.find(";");
+        if(semi_colon_pos != string::npos)
+            lang.erase(semi_colon_pos, lang.length() - semi_colon_pos);
+        accept_languages_string.append(lang);
+        if(i != languages.size() - 1){
+          accept_languages_string.append(1, ',');
+        }
+    }
+    return accept_languages_string;
+}
+
 SharedWorkerHost::SharedWorkerHost(SharedWorkerInstance* instance,
                                    SharedWorkerMessageFilter* filter,
                                    int worker_route_id)
     : instance_(instance),
       worker_document_set_(new WorkerDocumentSet()),
       container_render_filter_(filter),
       worker_process_id_(filter->render_process_id()),
       worker_route_id_(worker_route_id),
       load_failed_(false),
       closed_(false),
@@ skipping 36 matching lines @@
 }
 
 void SharedWorkerHost::Start(bool pause_on_start) {
   WorkerProcessMsg_CreateWorker_Params params;
   params.url = instance_->url();
   params.name = instance_->name();
   params.content_security_policy = instance_->content_security_policy();
   params.security_policy_type = instance_->security_policy_type();
   params.pause_on_start = pause_on_start;
   params.route_id = worker_route_id_;
+  net::URLRequestContext* req_context =
+                            instance_->resource_context()->GetRequestContext();
+  std::string accept_languages_string = HttpAcceptHeaderToAcceptLanguagesString(
+    req_context->http_user_agent_settings()->GetAcceptLanguage()
+    , GetContentClient()->browser()->GetApplicationLocale());
+  params.accept_languages = base::UTF8ToUTF16(accept_languages_string);
   Send(new WorkerProcessMsg_CreateWorker(params));
 
   for (FilterList::const_iterator i = filters_.begin(); i != filters_.end();
        ++i) {
     i->filter()->Send(new ViewMsg_WorkerCreated(i->route_id()));
   }
 }
 
 bool SharedWorkerHost::FilterMessage(const IPC::Message& message,
                                      SharedWorkerMessageFilter* filter) {
@@ skipping 218 matching lines @@
                                         int route_id,
                                         int message_port_id) {
   for (FilterList::iterator i = filters_.begin(); i != filters_.end(); ++i) {
     if (i->filter() == filter && i->route_id() == route_id) {
       i->set_message_port_id(message_port_id);
       return;
     }
   }
 }
 
+void SharedWorkerHost::AcceptLanguageChanged(const base::string16& languages)
+{
+  WorkerProcessMsg_LanguageChange_Params params;
+  params.route_id = worker_route_id_;
+  net::URLRequestContext* req_context =
+                            instance_->resource_context()->GetRequestContext();
+  std::string accept_languages_string = HttpAcceptHeaderToAcceptLanguagesString(
+    req_context->http_user_agent_settings()->GetAcceptLanguage()
+    , GetContentClient()->browser()->GetApplicationLocale());
+  params.accept_languages = base::UTF8ToUTF16(accept_languages_string);
+  Send(new WorkerProcessMsg_LanguageChange(params));
+}
+
+
 }  // namespace content