Upgrade analyze.py and related scripts to new world order.

tools/android/loading/devtools_monitor.py

Index: tools/android/loading/devtools_monitor.py
diff --git a/tools/android/loading/devtools_monitor.py b/tools/android/loading/devtools_monitor.py
index 5e8470bac8c3a8356e4601e1505d3da38b1494c0..f1aab2e2fa70552a4dea13643dc7eb66a6cb06de 100644
--- a/tools/android/loading/devtools_monitor.py
+++ b/tools/android/loading/devtools_monitor.py
@@ -168,6 +168,15 @@ class DevToolsConnection(object):
       raise DevToolsConnectionException(
           'Unexpected response for %s: %s' % (method, result))
 
+  def ClearCache(self):
+    """Clears buffer cache.
+
+    Will assert that the browser supports cache clearing.
+    """
+    res = self.SyncRequest('Network.canClearBrowserCache')
+    assert res['result'], 'Cache clearing is not supported by this browser.'
+    self.SyncRequest('Network.clearBrowserCache')
+
   def SetUpMonitoring(self):
     for domain in self._domains_to_enable:
       self._ws.RegisterDomain(domain, self._OnDataReceived)