Added several new bypass telemetry tests for the data reduction proxy

tools/chrome_proxy/integration_tests/chrome_proxy_pagesets/explicit_bypass.py

+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from integration_tests import chrome_proxy_measurements as measurements
+from integration_tests import chrome_proxy_metrics as metrics
+from telemetry.page import page as page_module
+from telemetry.page import page_set as page_set_module
+
+
+class ExplicitBypassPage(page_module.Page):
+  """A test page for the explicit bypass tests.
+
+  Attributes:
+      num_bypassed_proxies: The number of proxies that should be bypassed as a
+          direct result of loading this test page. 1 indicates that only the
+          primary data reduction proxy should be bypassed, while 2 indicates
+          that both the primary and fallback data reduction proxies should be
+          bypassed.
+      bypass_seconds_low: The minimum number of seconds that the bypass
+          triggered by loading this page should last.
+      bypass_seconds_high: The maximum number of seconds that the bypass
+          triggered by loading this page should last.
+  """
+
+  def __init__(self,
+               url,
+               page_set,
+               num_bypassed_proxies,
+               bypass_seconds_low,
+               bypass_seconds_high):
+    super(ExplicitBypassPage, self).__init__(url=url, page_set=page_set)
+    self.num_bypassed_proxies = num_bypassed_proxies
+    self.bypass_seconds_low = bypass_seconds_low
+    self.bypass_seconds_high = bypass_seconds_high
+
+
+class ExplicitBypassPageSet(page_set_module.PageSet):
+  """ Chrome proxy test sites """
+
+  def __init__(self):
+    super(ExplicitBypassPageSet, self).__init__()
+
+    # Test page for "Chrome-Proxy: bypass=0".
+    self.AddPage(ExplicitBypassPage(
+        url=measurements.GetResponseOverrideURL(
+            respHeader='{"Chrome-Proxy":["bypass=0"],'
+                       '"Via":["1.1 Chrome-Compression-Proxy"]}'),
+        page_set=self,
+        num_bypassed_proxies=1,
+        bypass_seconds_low=metrics.DEFAULT_BYPASS_MIN_SECONDS,
+        bypass_seconds_high=metrics.DEFAULT_BYPASS_MAX_SECONDS))
+
+    # Test page for "Chrome-Proxy: bypass=3600".
+    self.AddPage(ExplicitBypassPage(
+        url=measurements.GetResponseOverrideURL(
+            respHeader='{"Chrome-Proxy":["bypass=3600"],'
+                       '"Via":["1.1 Chrome-Compression-Proxy"]}'),
+        page_set=self,
+        num_bypassed_proxies=1,
+        bypass_seconds_low=3600,
+        bypass_seconds_high=3600))
+
+    # Test page for "Chrome-Proxy: block=0".
+    self.AddPage(ExplicitBypassPage(
+        url=measurements.GetResponseOverrideURL(
+            respHeader='{"Chrome-Proxy":["block=0"],'
+                       '"Via":["1.1 Chrome-Compression-Proxy"]}'),
+        page_set=self,
+        num_bypassed_proxies=2,
+        bypass_seconds_low=metrics.DEFAULT_BYPASS_MIN_SECONDS,
+        bypass_seconds_high=metrics.DEFAULT_BYPASS_MAX_SECONDS))
+
+    # Test page for "Chrome-Proxy: block=3600".
+    self.AddPage(ExplicitBypassPage(
+        url=measurements.GetResponseOverrideURL(
+            respHeader='{"Chrome-Proxy":["block=3600"],'
+                       '"Via":["1.1 Chrome-Compression-Proxy"]}'),
+        page_set=self,
+        num_bypassed_proxies=2,
+        bypass_seconds_low=3600,
+        bypass_seconds_high=3600))