Added gyp configs for new leveldb tests: fault_injection_test & recovery_test

These two tests are new with the latest leveldb DEPS roll.

Review URL: https://codereview.chromium.org/804473006

Cr-Commit-Position: refs/heads/master@{#308193}

third_party/leveldatabase/leveldatabase.gyp

@@ -271,6 +271,26 @@
         'src/db/corruption_test.cc',
       ],
     },
+    {
+      'target_name': 'leveldb_fault_injection_test',
+      'type': 'executable',
+      'dependencies': [
+        'leveldb_testutil',
+      ],
+      'sources': [
+        'src/db/fault_injection_test.cc',
+      ],
+    },
+    {
+      'target_name': 'leveldb_recovery_test',
+      'type': 'executable',
+      'dependencies': [
+        'leveldb_testutil',
+      ],
+      'sources': [
+        'src/db/recovery_test.cc',
+      ],
+    },
     {
       'target_name': 'leveldb_crc32c_test',
       'type': 'executable',