Share code between Mac and Linux in ResourceBundle.

app/resource_bundle_mac.mm

 // Copyright (c) 2006-2008 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 "app/resource_bundle.h"
 
 #import <Foundation/Foundation.h>
 
-#include "app/gfx/font.h"
-#include "app/l10n_util.h"
-#include "base/base_paths.h"
-#include "base/data_pack.h"
 #include "base/file_path.h"
-#include "base/file_util.h"
 #include "base/logging.h"
 #include "base/mac_util.h"
-#include "base/path_service.h"
-#include "base/string_piece.h"
-#include "base/string_util.h"
 #include "skia/ext/skia_utils_mac.h"
 
-ResourceBundle::~ResourceBundle() {
-  FreeImages();
-
-  delete locale_resources_data_;
-  locale_resources_data_ = NULL;
-  delete resources_data_;
-  resources_data_ = NULL;
-}
-
 namespace {
 
-base::DataPack *LoadResourceDataPack(NSString *name) {
-  base::DataPack *resource_pack = NULL;
-
+FilePath GetResourcesPakFilePath(NSString* name) {
   NSString *resource_path = [mac_util::MainAppBundle() pathForResource:name
                                                                 ofType:@"pak"];
-  if (resource_path) {
-    FilePath resources_pak_path([resource_path fileSystemRepresentation]);
-    resource_pack = new base::DataPack;
-    bool success = resource_pack->Load(resources_pak_path);
-    if (!success) {
-      delete resource_pack;
-      resource_pack = NULL;
-    }
-  }
-
-  return resource_pack;
+  if (!resource_path)
+    return FilePath();
+  return FilePath([resource_path fileSystemRepresentation]);
 }
 
 }  // namespace
 
-void ResourceBundle::LoadResources(const std::wstring& pref_locale) {
-  DLOG_IF(WARNING, pref_locale.size() != 0)
-      << "ignoring requested locale in favor of NSBundle's selection";
-
-  DCHECK(resources_data_ == NULL) << "resource data already loaded!";
-  resources_data_ = LoadResourceDataPack(@"chrome");
-  DCHECK(resources_data_) << "failed to load chrome.pak";
-
-  DCHECK(locale_resources_data_ == NULL) << "locale data already loaded!";
-  locale_resources_data_ = LoadResourceDataPack(@"locale");
-  DCHECK(locale_resources_data_) << "failed to load locale.pak";
+// static
+FilePath ResourceBundle::GetResourcesFilePath() {
+  return GetResourcesPakFilePath(@"chrome");
 }
 
 // static
-RefCountedStaticMemory* ResourceBundle::LoadResourceBytes(
-    DataHandle module, int resource_id) {
-  DCHECK(module);
-  return module->GetStaticMemory(resource_id);
-}
-
-base::StringPiece ResourceBundle::GetRawDataResource(int resource_id) {
-  DCHECK(resources_data_);
-  base::StringPiece data;
-  if (!resources_data_->GetStringPiece(resource_id, &data)) {
-    if (!locale_resources_data_->GetStringPiece(resource_id, &data)) {
-      return base::StringPiece();
-    }
-  }
-  return data;
-}
-
-string16 ResourceBundle::GetLocalizedString(int message_id) {
-  // If for some reason we were unable to load a resource dll, return an empty
-  // string (better than crashing).
-  if (!locale_resources_data_) {
-    LOG(WARNING) << "locale resources are not loaded";
-    return string16();
-  }
-
-  base::StringPiece data;
-  if (!locale_resources_data_->GetStringPiece(message_id, &data)) {
-    // Fall back on the main data pack (shouldn't be any strings here except in
-    // unittests).
-    data = GetRawDataResource(message_id);
-    if (data.empty()) {
-      NOTREACHED() << "unable to find resource: " << message_id;
-      return string16();
-    }
-  }
-
-  // Data pack encodes strings as UTF16.
-  string16 msg(reinterpret_cast<const char16*>(data.data()),
-               data.length() / 2);
-  return msg;
+FilePath ResourceBundle::GetLocaleFilePath(const std::wstring& pref_locale) {
+  DLOG_IF(WARNING, !pref_locale.empty())
+      << "ignoring requested locale in favor of NSBundle's selection";
+  return GetResourcesPakFilePath(@"locale");
 }
 
 NSImage* ResourceBundle::GetNSImageNamed(int resource_id) {
   // Currently this doesn't make a cache holding these as NSImages because
   // GetBitmapNamed has a cache, and we don't want to double cache.
   SkBitmap* bitmap = GetBitmapNamed(resource_id);
   if (!bitmap)
     return nil;
 
   NSImage* nsimage = gfx::SkBitmapToNSImage(*bitmap);
   return nsimage;
 }