Removing base::ThreadRestrictions::ScopedAllowIO from icon_manager_linux.cc

chrome/browser/icon_loader_mac.mm

Index: chrome/browser/icon_loader_mac.mm
diff --git a/chrome/browser/icon_loader_mac.mm b/chrome/browser/icon_loader_mac.mm
index 7f522b17b75a9e5e94752ff43a6d05e19395b972..6fdf2b0ecc5028417a18c2f62ba5408c0a66319d 100644
--- a/chrome/browser/icon_loader_mac.mm
+++ b/chrome/browser/icon_loader_mac.mm
@@ -13,8 +13,8 @@
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_util_mac.h"
 
-void IconLoader::ReadIcon() {
-  NSString* group = base::SysUTF8ToNSString(group_);
+void IconLoader::ReadIcon(const IconGroupID& group) {
+  NSString* group = base::SysUTF8ToNSString(group);
   NSWorkspace* workspace = [NSWorkspace sharedWorkspace];
   NSImage* icon = [workspace iconForFileType:group];
 
@@ -41,5 +41,5 @@ void IconLoader::ReadIcon() {
   }
 
   target_message_loop_->PostTask(FROM_HERE,
-      base::Bind(&IconLoader::NotifyDelegate, this));
+      base::Bind(&IconLoader::NotifyDelegate, this, group));
 }