Cleanup: json_schema_test.js now lives in extensions/test/data.

This fixes a TODO to point to the right path where this file now lives.

BUG=None
R=kalman@chromium.org

Review URL: https://codereview.chromium.org/887273003

Cr-Commit-Position: refs/heads/master@{#314801}

components/json_schema/json_schema_validator_unittest_base.h

@@ -16,7 +16,7 @@ class Value;
 // Base class for unit tests for JSONSchemaValidator. There is currently only
 // one implementation, JSONSchemaValidatorCPPTest.
 //
-// TODO(aa): Refactor chrome/test/data/json_schema_test.js into
+// TODO(aa): Refactor extensions/test/data/json_schema_test.js into
 // JSONSchemaValidatorJSTest that inherits from this.
 class JSONSchemaValidatorTestBase : public testing::Test {
  public: