Basic framework for devtools-based scrolling tests.

tools/chrome_remote_control/chrome_remote_control/browser.py

Index: tools/chrome_remote_control/chrome_remote_control/browser.py
diff --git a/tools/chrome_remote_control/chrome_remote_control/browser.py b/tools/chrome_remote_control/chrome_remote_control/browser.py
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+# 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.
+import os as real_os
+import sys as real_sys
+import subprocess as real_subprocess
+import urllib2
+import json
+import tab
+
+import browser_finder
+
+class Browser(object):
+  """A running browser instance that can be controled in a limited way.
+
+  To create a browser instance, use browser_finder.FindBestPossibleBrowser.
+
+  Be sure to clean up after yourself by calling Close() when you are done with
+  the browser. Or better yet:
+    browser_to_create = FindBestPossibleBrowser(options)
+    with browser_to_create.Create() as browser:
+      ... do all your operations on browser here
+  """
+  def __init__(self, backend):
+    self._backend = backend
+
+  def __enter__(self):
+    return self
+
+  def __exit__(self, *args):
+    self.Close()
+
+  @property
+  def num_tabs(self):
+    return self._backend.num_tabs
+
+  def GetNthTabURL(self, index):
+    return self._backend.GetNthTabURL(index)
+
+  def ConnectToNthTab(self, index):
+    return self._backend.ConnectToNthTab(index)
+
+  def Close(self):
+    self._backend.Close()