Integration test for Chrome-Proxy: pass-through directive

tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.py

Index: tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.py
diff --git a/tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.py b/tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.py
index e1fcb0a10c15af08dc15ed78b8fad1db6bdc42cf..5e43f876f6cd49e35cfb45a03713b2915e750dcb 100644
--- a/tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.py
+++ b/tools/chrome_proxy/integration_tests/chrome_proxy_benchmark.py
@@ -54,6 +54,16 @@ class ChromeProxyExpDirective(ChromeProxyBenchmark):
     return 'chrome_proxy_benchmark.exp_directive.exp_directive'
 
 
+class ChromeProxyPassThrough(ChromeProxyBenchmark):
+  tag = 'pass_through'
+  test = measurements.ChromeProxyPassThrough
+  page_set = pagesets.PassThroughPageSet
+
+  @classmethod
+  def Name(cls):
+    return 'chrome_proxy_benchmark.pass_through.pass_through'
+
+
 class ChromeProxyBypass(ChromeProxyBenchmark):
   tag = 'bypass'
   test = measurements.ChromeProxyBypass