services/shell: Allow injecting the location of resources.

ui/views/mus/aura_init.cc

 // Copyright 2015 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 "ui/views/mus/aura_init.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
@@ skipping 56 matching lines @@
     // torn down, when we're in a bad state.
     font_loader_->Shutdown();
   }
 #endif
 }
 
 void AuraInit::InitializeResources(shell::Connector* connector) {
   if (ui::ResourceBundle::HasSharedInstance())
     return;
 
+#if 0
   std::set<std::string> resource_paths({resource_file_});
   if (!resource_file_200_.empty())
     resource_paths.insert(resource_file_200_);
+#else
+  std::set<std::string> resource_paths({
+      "chrome_100_percent.pak", "chrome_200_percent.pak", "resources.pak",
+  });
+#endif
+
+  resource_file_ = "chrome_100_percent.pak";
+  resource_file_200_ = "chrome_200_percent.pak";
 
   catalog::ResourceLoader loader;
   filesystem::mojom::DirectoryPtr directory;
   connector->ConnectToInterface("mojo:catalog", &directory);
   CHECK(loader.OpenFiles(std::move(directory), resource_paths));
   ui::RegisterPathProvider();
-  base::File pak_file = loader.TakeFile(resource_file_);
-  base::File pak_file_2 = pak_file.Duplicate();
+  base::File pak_file = loader.TakeFile("resources.pak");
+  base::File pak_file_2 = loader.TakeFile("chrome_100_percent.pak");
   ui::ResourceBundle::InitSharedInstanceWithPakFileRegion(
       std::move(pak_file), base::MemoryMappedFile::Region::kWholeFile);
   ui::ResourceBundle::GetSharedInstance().AddDataPackFromFile(
       std::move(pak_file_2), ui::SCALE_FACTOR_100P);
   if (!resource_file_200_.empty())
     ui::ResourceBundle::GetSharedInstance().AddDataPackFromFile(
         loader.TakeFile(resource_file_200_), ui::SCALE_FACTOR_200P);
 
 // Initialize the skia font code to go ask fontconfig underneath.
 #if defined(OS_LINUX)
   font_loader_ = sk_make_sp<font_service::FontLoader>(connector);
   SkFontConfigInterface::SetGlobal(font_loader_.get());
 #endif
 
   // There is a bunch of static state in gfx::Font, by running this now,
   // before any other apps load, we ensure all the state is set up.
   gfx::Font();
 }
 
 }  // namespace views