diff --git a/brightray/common/main_delegate.cc b/brightray/common/main_delegate.cc
index 09cc8bc1038..5578fc7c3af 100644
--- a/brightray/common/main_delegate.cc
+++ b/brightray/common/main_delegate.cc
@@ -8,7 +8,9 @@
 #include "common/content_client.h"
 
 #include "base/command_line.h"
+#include "base/path_service.h"
 #include "content/public/common/content_switches.h"
+#include "ui/base/resource/resource_bundle.h"
 
 namespace brightray {
 
@@ -32,8 +34,26 @@ void MainDelegate::PreSandboxStartup() {
 #if defined(OS_MACOSX)
   OverrideChildProcessPath();
   OverrideFrameworkBundlePath();
-  InitializeResourceBundle();
 #endif
+  InitializeResourceBundle();
+}
+
+void MainDelegate::InitializeResourceBundle() {
+  base::FilePath path;
+#if defined(OS_MACOSX)
+  path = GetResourcesPakFilePath();
+#else
+  base::FilePath pak_dir;
+  PathService::Get(base::DIR_MODULE, &pak_dir);
+  path = pak_dir.Append(FILE_PATH_LITERAL("content_shell.pak"));
+#endif
+
+  ui::ResourceBundle::InitSharedInstanceWithPakPath(path);
+
+  std::vector<base::FilePath> pak_paths;
+  AddPakPaths(&pak_paths);
+  for (auto it = pak_paths.begin(), end = pak_paths.end(); it != end; ++it)
+    ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(*it, ui::SCALE_FACTOR_NONE);
 }
 
 }
diff --git a/brightray/common/main_delegate.h b/brightray/common/main_delegate.h
index b695c7c326c..f5cbe88d4e8 100644
--- a/brightray/common/main_delegate.h
+++ b/brightray/common/main_delegate.h
@@ -34,8 +34,9 @@ protected:
   virtual void PreSandboxStartup() OVERRIDE;
 
 private:
-#if defined(OS_MACOSX)
   void InitializeResourceBundle();
+#if defined(OS_MACOSX)
+  static base::FilePath GetResourcesPakFilePath();
   static void OverrideChildProcessPath();
   static void OverrideFrameworkBundlePath();
 #endif
diff --git a/brightray/common/main_delegate_mac.mm b/brightray/common/main_delegate_mac.mm
index 72ae553ff88..aa7bf0f4625 100644
--- a/brightray/common/main_delegate_mac.mm
+++ b/brightray/common/main_delegate_mac.mm
@@ -12,7 +12,6 @@
 #include "base/mac/bundle_locations.h"
 #include "base/path_service.h"
 #include "content/public/common/content_paths.h"
-#include "ui/base/resource/resource_bundle.h"
 
 namespace brightray {
 
@@ -24,15 +23,9 @@ base::FilePath GetFrameworksPath() {
 
 }
 
-void MainDelegate::InitializeResourceBundle() {
+base::FilePath MainDelegate::GetResourcesPakFilePath() {
   auto path = [base::mac::FrameworkBundle() pathForResource:@"content_shell" ofType:@"pak"];
-
-  ui::ResourceBundle::InitSharedInstanceWithPakPath(base::mac::NSStringToFilePath(path));
-
-  std::vector<base::FilePath> pak_paths;
-  AddPakPaths(&pak_paths);
-  for (const auto& path : pak_paths)
-    ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(path, ui::SCALE_FACTOR_NONE);
+  return base::mac::NSStringToFilePath(path);
 }
 
 void MainDelegate::OverrideFrameworkBundlePath() {