Disable flaky ProfileAttributesStorageTest.LoadAvatarFromDiskTest on Linux ASAN.

TBR= lwchkg@chromium.org

Bug: 794821
Change-Id: Ie3fc909acee14e5bf8b8b80e8c8e0e2b3bf45945
Reviewed-on: https://chromium-review.googlesource.com/827006Reviewed-by: Henrik Grunell <grunell@chromium.org>
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Commit-Queue: Henrik Grunell <grunell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#524048}

chrome/browser/profiles/profile_attributes_storage_unittest.cc

@@ -791,7 +791,14 @@ TEST_F(ProfileAttributesStorageTest, NothingToDownloadHighResAvatarTest) {
   EXPECT_EQ(0U, storage()->avatar_images_downloads_in_progress_.size());
 }
 
-TEST_F(ProfileAttributesStorageTest, LoadAvatarFromDiskTest) {
+// Flaky on Linux ASAN. http://crbug.com/794821.
+#if defined(OS_LINUX) && defined(ADDRESS_SANITIZER)
+#define MAYBE_LoadAvatarFromDiskTest DISABLED_LoadAvatarFromDiskTest
+#else
+#define MAYBE_LoadAvatarFromDiskTest LoadAvatarFromDiskTest
+#endif
+
+TEST_F(ProfileAttributesStorageTest, MAYBE_LoadAvatarFromDiskTest) {
   const size_t kIconIndex = 0;
   base::FilePath icon_path =
       profiles::GetPathOfHighResAvatarAtIndex(kIconIndex);