Fix typo in TestURLFetcher

tools/valgrind/memcheck/suppressions.txt

 # There are three kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 4130 matching lines @@
    fun:_ZNKSt8_Rb_treeIjSt4pairIKjP12ObserverListI20NotificationObserverLb0EEESt10_Select1stIS6_ESt4lessIjESaIS6_EE8_M_beginEv
    fun:_ZNKSt8_Rb_treeIjSt4pairIKjP12ObserverListI20NotificationObserverLb0EEESt10_Select1stIS6_ESt4lessIjESaIS6_EE4findERS1_
    fun:_ZNKSt3mapIjP12ObserverListI20NotificationObserverLb0EESt4lessIjESaISt4pairIKjS3_EEE4findERS7_
    fun:_ZN19NotificationService6HasKeyERKSt3mapIjP12ObserverListI20NotificationObserverLb0EESt4lessIjESaISt4pairIKjS4_EEERK18NotificationSource
    fun:_ZN19NotificationService6NotifyE16NotificationTypeRK18NotificationSourceRK19NotificationDetails
    fun:_ZN23ChromeURLRequestContextD0Ev
    ...
    fun:_ZN17URLRequestHttpJobD0Ev
 }
 {
-   bug_52826
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN14TestingProfile20CreateRequestContextEv
-   fun:_ZN20GoogleURLTrackerTest20CreateRequestContextEv
-}
-{
    bug_52828
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN4base10JSONReader10BuildValueEb
    fun:_ZN4base10JSONReader11JsonToValueERKSsbb
    fun:_ZN4base10JSONReader18ReadAndReturnErrorERKSsbPiPSs
    fun:_ZN4base10JSONReader4ReadERKSsb
    fun:_ZN81_GLOBAL__N_chrome_browser_host_content_settings_map_unittest.cc*
 }