Add PathUtilsTest.

base/base.gyp

Index: base/base.gyp
diff --git a/base/base.gyp b/base/base.gyp
index 91269004adae30c1262dcd2e5b5c2aa2fcf76f2a..e048d097fab5c9217f35f520945753ebeaa3fd77 100644
--- a/base/base.gyp
+++ b/base/base.gyp
@@ -132,6 +132,7 @@
       'sources': [
         # Tests.
         'android/jni_android_unittest.cc',
+        'android/path_utils_unittest.cc',
         'android/scoped_java_ref_unittest.cc',
         'at_exit_unittest.cc',
         'atomicops_unittest.cc',
@@ -301,22 +302,27 @@
         ['OS == "android"', {
           'sources!': [
             # TODO(michaelbai): Removed the below once the fix upstreamed.
+            'debug/stack_trace_unittest.cc',
             'memory/mru_cache_unittest.cc',
             'process_util_unittest.cc',
             'synchronization/cancellation_flag_unittest.cc',
-            # TODO(michaelbai): The below files are excluded because of the
-            # missing JNI and should be added back once JNI is ready.
-            'android/jni_android_unittest.cc',
-            'android/scoped_java_ref_unittest.cc',
-            'debug/stack_trace_unittest.cc',
           ],
           'dependencies': [
             'android/jni_generator/jni_generator.gyp:jni_generator_tests',
           ],
-        }],
-        ['OS=="android" and "<(gtest_target_type)"=="shared_library"', {
-          'dependencies': [
-            '../testing/android/native_test.gyp:native_test_native_code',
+          'conditions': [
+            ['"<(gtest_target_type)"=="shared_library"', {
+              'dependencies': [
+                '../testing/android/native_test.gyp:native_test_native_code',
+              ],
+            }, { # gtest_target_type != shared_library
+              'sources!': [
+                # The below files are excluded because of the missing JNI.
+                'android/jni_android_unittest.cc',
+                'android/path_utils_unittest.cc',
+                'android/scoped_java_ref_unittest.cc',
+              ],
+            }],
           ],
         }],
         ['use_glib==1', {