base: Remove the string logging from CHECK().

chrome/browser/profiles/profile_manager.cc

Index: chrome/browser/profiles/profile_manager.cc
diff --git a/chrome/browser/profiles/profile_manager.cc b/chrome/browser/profiles/profile_manager.cc
index c05003344d63274343f5b7c5249adf0e37c064ed..8bba88ff260635e3628336ce00f18b04f92d7ce4 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -445,7 +445,7 @@ Profile* ProfileManager::GetActiveUserProfile() {
   // However, most callers of this function immediately dereference the result
   // which would lead to crashes in a variety of call sites. Assert here to
   // figure out how common this is. http://crbug.com/383019
-  CHECK(profile) << profile_manager->user_data_dir().AsUTF8Unsafe();
+  CHECK(profile);
   return profile;
 }
 
@@ -964,8 +964,8 @@ void ProfileManager::Observe(
       // Confirm that we hadn't loaded the new profile previously.
       base::FilePath default_profile_dir = user_data_dir_.Append(
           GetInitialProfileDir());
-      CHECK(!GetProfileByPathInternal(default_profile_dir))
-          << "The default profile was loaded before we mounted the cryptohome.";
+      // The default profile was loaded before we mounted the cryptohome.
+      CHECK(!GetProfileByPathInternal(default_profile_dir));
     }
     return;
   }