[Android] Guard perf_control creation in gtest test_runner.

BUG=None
TBR=skyostil@chromium.org

Review URL: https://codereview.chromium.org/63403006

git-svn-id: http://src.chromium.org/svn/trunk/src/build@235862 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/pylib/gtest/test_runner.py

@@ -52,7 +52,8 @@ class TestRunner(base_test_runner.BaseTestRunner):
       timeout = timeout * 2
 
     self._timeout = timeout * self.tool.GetTimeoutScale()
-    self._perf_controller = perf_control.PerfControl(self.adb)
+    if _TestSuiteRequiresHighPerfMode(self.test_package.suite_name):
+      self._perf_controller = perf_control.PerfControl(self.adb)
 
   #override
   def InstallTestPackage(self):