Heapchecker: Suppress leaks in GoogleURLTracker tests.

BUG=52826
TEST=none
TBR=ukai
Review URL: http://codereview.chromium.org/3199010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@56896 0039d316-1c4b-4281-b951-d872f2087c98

tools/heapcheck/suppressions.txt

@@ -955,3 +955,10 @@
    fun:Callback1::Type* NewCallback
    fun:PrefValueStoreTest_TestConcurrentPolicyRefresh_Test::TestBody
 }
+{
+   bug_52826
+   Heapcheck:Leak
+   fun:TestingProfile::CreateRequestContext
+   fun:GoogleURLTrackerTest::CreateRequestContext
+   fun:GoogleURLTrackerTest_SearchCommitedAndUserSayNo_Test::TestBody
+}