base: Remove the string logging from CHECK().

chrome/browser/chrome_browser_application_mac.mm

Index: chrome/browser/chrome_browser_application_mac.mm
diff --git a/chrome/browser/chrome_browser_application_mac.mm b/chrome/browser/chrome_browser_application_mac.mm
index f465664004dcff370ae16c5975022dc17b36af4d..5cb0ad5fe497c62c089d91ec94423dfc568ea4fe 100644
--- a/chrome/browser/chrome_browser_application_mac.mm
+++ b/chrome/browser/chrome_browser_application_mac.mm
@@ -75,16 +75,12 @@ void CancelTerminate() {
   // NSApplication subclass is requested, require that to be the one
   // delivered.  The practical effect is to require a consistent NSApp
   // across the executable.
-  CHECK([NSApp isKindOfClass:self])
-      << "NSApp must be of type " << [[self className] UTF8String]
-      << ", not " << [[NSApp className] UTF8String];
+  CHECK([NSApp isKindOfClass:self]);
 
   // If the message loop was initialized before NSApp is setup, the
   // message pump will be setup incorrectly.  Failing this implies
   // that RegisterBrowserCrApp() should be called earlier.
-  CHECK(base::MessagePumpMac::UsingCrApp())
-      << "MessagePumpMac::Create() is using the wrong pump implementation"
-      << " for " << [[self className] UTF8String];
+  CHECK(base::MessagePumpMac::UsingCrApp());
 
   return app;
 }