Do not try to load material design paks if not on Mac OS.

ui/base/resource/resource_bundle.cc

Index: ui/base/resource/resource_bundle.cc
diff --git a/ui/base/resource/resource_bundle.cc b/ui/base/resource/resource_bundle.cc
index daab4db206f9ab86e0bfbdac730c606b2af9121a..08f1937933469531e784fa3b69738dfa7e71992f 100644
--- a/ui/base/resource/resource_bundle.cc
+++ b/ui/base/resource/resource_bundle.cc
@@ -697,11 +697,14 @@ void ResourceBundle::FreeImages() {
 }
 
 void ResourceBundle::LoadChromeResources() {
+  // TODO(estade): remove material design specific resources.
+  // See crbug.com/613593
   // The material design data packs contain some of the same asset IDs as in
   // the non-material design data packs. Add these to the ResourceBundle
   // first so that they are searched first when a request for an asset is
   // made.
   if (MaterialDesignController::IsModeMaterial()) {

[Evan Stade, 2016/06/01 19:14:14]

hmm, is this check necessary on !osx? Can we move the ifdef outside?

[mfomitchev, 2016/06/01 21:09:45]

Good point. Done.

+#if defined(OS_MACOSX)
     if (IsScaleFactorSupported(SCALE_FACTOR_100P)) {
       AddMaterialDesignDataPackFromPath(
           GetResourcesPakFilePath("chrome_material_100_percent.pak"),
@@ -713,6 +716,7 @@ void ResourceBundle::LoadChromeResources() {
           GetResourcesPakFilePath("chrome_material_200_percent.pak"),
           SCALE_FACTOR_200P);
     }
+#endif
   }
 
   // Always load the 1x data pack first as the 2x data pack contains both 1x and