Convert Mojo tests to use swarming.

mojo/mojo_public_system_unittests.isolate

Index: mojo/mojo_public_system_unittests.isolate
diff --git a/mojo/mojo_public_system_unittests.isolate b/mojo/mojo_public_system_unittests.isolate
index 73b8c0052fc7f4210a5e5f0a755e8c6744aa0888..87099f6024250d0c55ef550de111b5de2ef8deee 100644
--- a/mojo/mojo_public_system_unittests.isolate
+++ b/mojo/mojo_public_system_unittests.isolate
@@ -3,7 +3,7 @@
 # found in the LICENSE file.
 {
   'includes': [
-    '../base/base.isolate',
+    '../mojo/mojo.isolate',
   ],
   'conditions': [
     ['OS=="win" or OS=="mac" or OS=="linux"', {
@@ -19,26 +19,5 @@
         ],
       },
     }],
-    ['OS=="win"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/mojo_public_test_support.dll',
-        ],
-      },
-    }],
-    ['OS=="linux"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/lib/libmojo_public_test_support.so',
-        ],
-      },
-    }],
-    ['OS=="mac"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/libmojo_public_test_support.dylib',
-        ],
-      },
-    }],
   ],
 }