Rename Lo-Fi previews to lite pages

tools/chrome_proxy/common/chrome_proxy_metrics.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.
 
 import logging
 import time
 
 from common import network_metrics
 from telemetry.page import page_test
 from telemetry.value import scalar
@@ skipping 85 matching lines @@
         "android". Returns None if no client type directive is present.
     """
     return self.GetChromeProxyRequestHeaderValue('c')
 
   def HasChromeProxyLoFiRequest(self):
     return self.HasRequestHeader('Chrome-Proxy', "q=low")
 
   def HasChromeProxyLoFiResponse(self):
     return self.HasResponseHeader('Chrome-Proxy', "q=low")
 
-  def HasChromeProxyLoFiPreviewRequest(self):
+  def HasChromeProxyLitePageRequest(self):
     return self.HasRequestHeader('Chrome-Proxy', "q=preview")
 
-  def HasChromeProxyLoFiPreviewExpRequest(self):
+  def HasChromeProxyLitePageExpRequest(self):
     return self.HasRequestHeader('Chrome-Proxy', "exp=ignore_preview_blacklist")
 
-  def HasChromeProxyLoFiPreviewResponse(self):
+  def HasChromeProxyLitePageResponse(self):
     return self.HasResponseHeader('Chrome-Proxy', "q=preview")
 
   def HasChromeProxyPassThroughRequest(self):
     return self.HasRequestHeader('Chrome-Proxy', "pass-through")