[Telemetry] Reorganize everything.

tools/telemetry/telemetry/tab.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.
-from telemetry import web_contents
-
-DEFAULT_TAB_TIMEOUT = 60
-
-class Tab(web_contents.WebContents):
-  """Represents a tab in the browser
-
-  The important parts of the Tab object are in the runtime and page objects.
-  E.g.:
-      # Navigates the tab to a given url.
-      tab.Navigate('http://www.google.com/')
-
-      # Evaluates 1+1 in the tab's JavaScript context.
-      tab.Evaluate('1+1')
-  """
-  def __init__(self, inspector_backend):
-    super(Tab, self).__init__(inspector_backend)
-
-  def __del__(self):
-    super(Tab, self).__del__()
-
-  @property
-  def browser(self):
-    """The browser in which this tab resides."""
-    return self._inspector_backend.browser
-
-  @property
-  def url(self):
-    return self._inspector_backend.url
-
-  def Activate(self):
-    """Brings this tab to the foreground asynchronously.
-
-    Not all browsers or browser versions support this method.
-    Be sure to check browser.supports_tab_control.
-
-    Please note: this is asynchronous. There is a delay between this call
-    and the page's documentVisibilityState becoming 'visible', and yet more
-    delay until the actual tab is visible to the user. None of these delays
-    are included in this call."""
-    self._inspector_backend.Activate()
-
-  def Close(self):
-    """Closes this tab.
-
-    Not all browsers or browser versions support this method.
-    Be sure to check browser.supports_tab_control."""
-    self._inspector_backend.Close()
-
-  @property
-  def screenshot_supported(self):
-    """True if the browser instance is capable of capturing screenshots"""
-    return self._inspector_backend.screenshot_supported
-
-  def Screenshot(self, timeout=DEFAULT_TAB_TIMEOUT):
-    """Capture a screenshot of the window for rendering validation"""
-    return self._inspector_backend.Screenshot(timeout)
-
-  def PerformActionAndWaitForNavigate(
-      self, action_function, timeout=DEFAULT_TAB_TIMEOUT):
-    """Executes action_function, and waits for the navigation to complete.
-
-    action_function must be a Python function that results in a navigation.
-    This function returns when the navigation is complete or when
-    the timeout has been exceeded.
-    """
-    self._inspector_backend.PerformActionAndWaitForNavigate(
-        action_function, timeout)
-
-  def Navigate(self, url, timeout=DEFAULT_TAB_TIMEOUT):
-    """Navigates to url."""
-    self._inspector_backend.Navigate(url, timeout)
-
-  def GetCookieByName(self, name, timeout=DEFAULT_TAB_TIMEOUT):
-    """Returns the value of the cookie by the given |name|."""
-    return self._inspector_backend.GetCookieByName(name, timeout)