Injected CSS localization fix (see bug no.)

chrome/browser/extensions/user_script_master.cc

Index: chrome/browser/extensions/user_script_master.cc
diff --git a/chrome/browser/extensions/user_script_master.cc b/chrome/browser/extensions/user_script_master.cc
index 8267b78eef58d5f5b7bc7fe5d4af5cebcfec180a..7d2fc1452e2044adcefa1087e977a7302575c162 100644
--- a/chrome/browser/extensions/user_script_master.cc
+++ b/chrome/browser/extensions/user_script_master.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/extensions/user_script_master.h"
 
+#include <map>
 #include <string>
 #include <vector>
 
@@ -18,8 +19,10 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/extension_messages.h"
+#include "chrome/common/extensions/extension_file_util.h"
+#include "chrome/common/extensions/extension_message_bundle.h"
 #include "chrome/common/extensions/extension_resource.h"
+#include "chrome/common/extensions/extension_set.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/common/notification_service.h"
 
@@ -44,6 +47,12 @@ static bool GetDeclarationValue(const base::StringPiece& line,
 UserScriptMaster::ScriptReloader::ScriptReloader(UserScriptMaster* master)
     : master_(master) {
   CHECK(BrowserThread::GetCurrentThreadIdentifier(&master_thread_id_));
+
+  // Gather extensions information needed for localization.
+  if (master && master->profile_ && master->profile_->GetExtensionInfoMap()) {
+    const ExtensionInfoMap* info_map = master->profile_->GetExtensionInfoMap();
+    info_map->extensions().GetExtensionsPathAndDefaultLocale(extensions_info_);
+  }
 }
 
 // static
@@ -160,7 +169,8 @@ void UserScriptMaster::ScriptReloader::NotifyMaster(
   Release();
 }
 
-static bool LoadScriptContent(UserScript::File* script_file) {
+static bool LoadScriptContent(UserScript::File* script_file,
+                              const SubstitutionMap* localization_messages) {
   std::string content;
   const FilePath& path = ExtensionResource::GetFilePath(
       script_file->extension_root(), script_file->relative_path());
@@ -169,6 +179,13 @@ static bool LoadScriptContent(UserScript::File* script_file) {
     return false;
   }
 
+  // Localize the content.
+  if (localization_messages) {
+    std::string error;
+    ExtensionMessageBundle::ReplaceMessagesWithExternalDictionary(
+        *localization_messages, &content, &error);
+  }
+
   // Remove BOM from the content.
   std::string::size_type index = content.find(kUtf8ByteOrderMark);
   if (index == 0) {
@@ -180,24 +197,37 @@ static bool LoadScriptContent(UserScript::File* script_file) {
   return true;
 }
 
-// static
 void UserScriptMaster::ScriptReloader::LoadUserScripts(
     UserScriptList* user_scripts) {
   for (size_t i = 0; i < user_scripts->size(); ++i) {
     UserScript& script = user_scripts->at(i);
+    scoped_ptr<SubstitutionMap> localization_messages(
+        GetLocalizationMessages(script.extension_id()));
     for (size_t k = 0; k < script.js_scripts().size(); ++k) {
       UserScript::File& script_file = script.js_scripts()[k];
       if (script_file.GetContent().empty())
-        LoadScriptContent(&script_file);
+        LoadScriptContent(&script_file, NULL);
     }
     for (size_t k = 0; k < script.css_scripts().size(); ++k) {
       UserScript::File& script_file = script.css_scripts()[k];
       if (script_file.GetContent().empty())
-        LoadScriptContent(&script_file);
+        LoadScriptContent(&script_file, localization_messages.get());
     }
   }
 }
 
+SubstitutionMap* UserScriptMaster::ScriptReloader::GetLocalizationMessages(
+    std::string extension_id) {
+  if (extensions_info_.find(extension_id) == extensions_info_.end()) {
+    return NULL;
+  }
+
+  return extension_file_util::LoadExtensionMessageBundleSubstitutionMap(
+      extensions_info_[extension_id].first,
+      extension_id,
+      extensions_info_[extension_id].second);
+}
+
 // Pickle user scripts and return pointer to the shared memory.
 static base::SharedMemory* Serialize(const UserScriptList& scripts) {
   Pickle pickle;