JDA unittest: don't require the test file in /media/test/data/.

media/base/test_data_util.h

Index: media/base/test_data_util.h
diff --git a/media/base/test_data_util.h b/media/base/test_data_util.h
index b93093b1e7164ce01c161b5e033c8443ff4b22ea..a400b377679c63c131f4d4f0e9d1e4843d4b0a28 100644
--- a/media/base/test_data_util.h
+++ b/media/base/test_data_util.h
@@ -23,6 +23,10 @@ base::FilePath GetTestDataFilePath(const std::string& name);
 // Returns relative path for test data folder: media/test/data.
 base::FilePath GetTestDataPath();
 
+// Returns a file path for a file in what name specified or media/test/data
+// directory.  If the original file path is existed, returns it first.
+base::FilePath GetOriginalOrTestDataFilePath(const std::string& name);
+
 // Returns a string containing key value query params in the form of:
 // "key_1=value_1&key_2=value2"
 std::string GetURLQueryString(const base::StringPairs& query_params);