Update references to tools/telemetry in .gn, .gyp & .isolate files

tools/perf/chrome_telemetry_build/telemetry_chrome_test.isolate

Index: tools/perf/chrome_telemetry_build/telemetry_chrome_test.isolate
diff --git a/tools/perf/chrome_telemetry_build/telemetry_chrome_test.isolate b/tools/perf/chrome_telemetry_build/telemetry_chrome_test.isolate
index f87dcd4860223d9dec2fb63fa88cdbcd3102f933..86b8e249ff0e15ade2a90404961c72d04ade814d 100644
--- a/tools/perf/chrome_telemetry_build/telemetry_chrome_test.isolate
+++ b/tools/perf/chrome_telemetry_build/telemetry_chrome_test.isolate
@@ -7,7 +7,16 @@
   'includes': [
     '../../../chrome/breakpad.isolate',
     '../../../chrome/chrome.isolate',
-    '../../telemetry/telemetry.isolate',
     'telemetry_binary_manager.isolate',
   ],
+  'conditions': [
+    ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
+      'variables': {
+        'files': [
+          '../../../third_party/catapult/',
+        ],
+      },
+    }],
+  ]
+
 }