[Telemetry] Reorganize everything.

tools/telemetry/telemetry/inspector_runtime.py

-# Copyright (c) 2012 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.
-class EvaluateException(Exception):
-  pass
-
-class InspectorRuntime(object):
-  def __init__(self, inspector_backend):
-    self._inspector_backend = inspector_backend
-    self._inspector_backend.RegisterDomain(
-        'Runtime',
-        self._OnNotification,
-        self._OnClose)
-
-  def _OnNotification(self, msg):
-    pass
-
-  def _OnClose(self):
-    pass
-
-  def Execute(self, expr, timeout=60):
-    """Executes expr in javascript. Does not return the result.
-
-    If the expression failed to evaluate, EvaluateException will be raised.
-    """
-    self.Evaluate(expr + '; 0;', timeout)
-
-  def Evaluate(self, expr, timeout=60):
-    """Evalutes expr in javascript and returns the JSONized result.
-
-    Consider using Execute for cases where the result of the expression is not
-    needed.
-
-    If evaluation throws in javascript, a python EvaluateException will
-    be raised.
-
-    If the result of the evaluation cannot be JSONized, then an
-    EvaluationException will be raised.
-    """
-    request = {
-      'method': 'Runtime.evaluate',
-      'params': {
-        'expression': expr,
-        'returnByValue': True
-        }
-      }
-    res = self._inspector_backend.SyncRequest(request, timeout)
-    if 'error' in res:
-      raise EvaluateException(res['error']['message'])
-
-    if 'wasThrown' in res['result'] and res['result']['wasThrown']:
-      # TODO(nduca): propagate stacks from javascript up to the python
-      # exception.
-      raise EvaluateException(res['result']['result']['description'])
-    if res['result']['result']['type'] == 'undefined':
-      return None
-    return res['result']['result']['value']