Enable MD by default on Windows for Canary/Dev and local builds.

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 0f95c9e2e08dfdbeaa388cf67755dbdbc57ca9a6..1dc1acded0b0e37488b6750dd6268c45bb7691c2 100644
--- a/ui/base/resource/resource_bundle.cc
+++ b/ui/base/resource/resource_bundle.cc
@@ -57,6 +57,8 @@
 #include "ui/display/win/dpi.h"
 #endif
 
+// Helpers --------------------------------------------------------------------
+
 namespace ui {
 
 namespace {
@@ -114,6 +116,29 @@ SkBitmap CreateEmptyBitmap() {
 
 }  // namespace
 
+
+// ResourceBundle::TemporaryLoader --------------------------------------------
+
+ResourceBundle::TemporaryLoader::TemporaryLoader()
+    : already_loaded_(ResourceBundle::HasSharedInstance()) {
+  if (!already_loaded_) {
+    std::string locale = l10n_util::GetApplicationLocale(std::string());
+    const char kUserDataDirDialogFallbackLocale[] = "en-US";
+    if (locale.empty())
+      locale = kUserDataDirDialogFallbackLocale;
+    ui::ResourceBundle::InitSharedInstanceWithLocale(
+        locale, nullptr, ui::ResourceBundle::DO_NOT_LOAD_COMMON_RESOURCES);
+  }
+}
+
+ResourceBundle::TemporaryLoader::~TemporaryLoader() {
+  if (!already_loaded_)
+    ResourceBundle::CleanupSharedInstance();
+}
+
+
+// ResourceBundle::ResourceBundleImageSource ----------------------------------
+
 // An ImageSkiaSource that loads bitmaps for the requested scale factor from
 // ResourceBundle on demand for a given |resource_id|. If the bitmap for the
 // requested scale factor does not exist, it will return the 1x bitmap scaled
@@ -171,6 +196,9 @@ class ResourceBundle::ResourceBundleImageSource : public gfx::ImageSkiaSource {
   DISALLOW_COPY_AND_ASSIGN(ResourceBundleImageSource);
 };
 
+
+// ResourceBundle -------------------------------------------------------------
+
 // static
 std::string ResourceBundle::InitSharedInstanceWithLocale(
     const std::string& pref_locale,