Fix python scripts src/chrome_frame/tools/test/page_cycler/cf_cycler.py

Make sure that:
- shebang is only present for executable files
- __main__ is only present for executable files
- file's executable bit is coherent

Also fix EOF LF to be only one.

* Doing it separately since the CQ cannot process it.

TBR=robertshield@chromium.org
BUG=105108
TEST=

Review URL: http://codereview.chromium.org/8662025

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111399 0039d316-1c4b-4281-b951-d872f2087c98

chrome_frame/tools/test/page_cycler/cf_cycler.py

-# Copyright (c) 2009 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.
-
-"""Automates IE to visit a list of web sites while running CF in full tab mode.
-
-The page cycler automates IE and navigates it to a series of URLs. It is
-designed to be run with Chrome Frame configured to load every URL inside
-CF full tab mode.
-
-TODO(robertshield): Make use of the python unittest module as per 
-review comments.
-"""
-
-import optparse
-import sys
-import time
-import win32com.client
-import win32gui
-
-def LoadSiteList(path):
-  """Loads a list of URLs from |path|.
-
-  Expects the URLs to be separated by newlines, with no leading or trailing
-  whitespace. 
-
-  Args:
-    path: The path to a file containing a list of new-line separated URLs.
-
-  Returns:
-    A list of strings, each one a URL.
-  """
-  f = open(path)
-  urls = f.readlines()
-  f.close()
-  return urls
-
-def LaunchIE():
-  """Starts up IE, makes it visible and returns the automation object. 
-
-  Returns: 
-    The IE automation object.
-  """
-  ie = win32com.client.Dispatch("InternetExplorer.Application")
-  ie.visible = 1
-  win32gui.SetForegroundWindow(ie.HWND)
-  return ie
-
-def RunTest(url, ie):
-  """Loads |url| into the InternetExplorer.Application instance in |ie|.
-
-   Waits for the Document object to be created and then waits for
-   the document ready state to reach READYSTATE_COMPLETE.
-  Args:
-    url: A string containing the url to navigate to.
-    ie: The IE automation object to navigate.
-  """
-
-  print "Navigating to " + url
-  ie.Navigate(url)
-  timer = 0
-
-  READYSTATE_COMPLETE = 4
-
-  last_ready_state = -1
-  for retry in xrange(60):
-    try:
-      # TODO(robertshield): Become an event sink instead of polling for
-      # changes to the ready state.
-      last_ready_state = ie.Document.ReadyState
-      if last_ready_state == READYSTATE_COMPLETE:
-        break
-    except:
-      # TODO(robertshield): Find the precise exception related to ie.Document
-      # being not accessible and handle it here.
-      print "Unexpected error:", sys.exc_info()[0]
-      raise
-    time.sleep(1)
-
-  if last_ready_state != READYSTATE_COMPLETE:
-    print "Timeout waiting for " + url
-
-def main():
-  parser = optparse.OptionParser()
-  parser.add_option('-u', '--url_list', default='urllist',
-                    help='The path to the list of URLs')
-  (opts, args) = parser.parse_args()  
-
-  urls = LoadSiteList(opts.url_list)
-  ie = LaunchIE()  
-  for url in urls:
-    RunTest(url, ie)
-    time.sleep(1)
-  ie.visible = 0
-  ie.Quit()
-
-
-if __name__ == '__main__':
-  main()
+#!/usr/bin/env python
+# Copyright (c) 2011 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.
+
+"""Automates IE to visit a list of web sites while running CF in full tab mode.
+
+The page cycler automates IE and navigates it to a series of URLs. It is
+designed to be run with Chrome Frame configured to load every URL inside
+CF full tab mode.
+
+TODO(robertshield): Make use of the python unittest module as per
+review comments.
+"""
+
+import optparse
+import sys
+import time
+import win32com.client
+import win32gui
+
+def LoadSiteList(path):
+  """Loads a list of URLs from |path|.
+
+  Expects the URLs to be separated by newlines, with no leading or trailing
+  whitespace.
+
+  Args:
+    path: The path to a file containing a list of new-line separated URLs.
+
+  Returns:
+    A list of strings, each one a URL.
+  """
+  f = open(path)
+  urls = f.readlines()
+  f.close()
+  return urls
+
+def LaunchIE():
+  """Starts up IE, makes it visible and returns the automation object.
+
+  Returns:
+    The IE automation object.
+  """
+  ie = win32com.client.Dispatch("InternetExplorer.Application")
+  ie.visible = 1
+  win32gui.SetForegroundWindow(ie.HWND)
+  return ie
+
+def RunTest(url, ie):
+  """Loads |url| into the InternetExplorer.Application instance in |ie|.
+
+   Waits for the Document object to be created and then waits for
+   the document ready state to reach READYSTATE_COMPLETE.
+  Args:
+    url: A string containing the url to navigate to.
+    ie: The IE automation object to navigate.
+  """
+
+  print "Navigating to " + url
+  ie.Navigate(url)
+  timer = 0
+
+  READYSTATE_COMPLETE = 4
+
+  last_ready_state = -1
+  for retry in xrange(60):
+    try:
+      # TODO(robertshield): Become an event sink instead of polling for
+      # changes to the ready state.
+      last_ready_state = ie.Document.ReadyState
+      if last_ready_state == READYSTATE_COMPLETE:
+        break
+    except:
+      # TODO(robertshield): Find the precise exception related to ie.Document
+      # being not accessible and handle it here.
+      print "Unexpected error:", sys.exc_info()[0]
+      raise
+    time.sleep(1)
+
+  if last_ready_state != READYSTATE_COMPLETE:
+    print "Timeout waiting for " + url
+
+def main():
+  parser = optparse.OptionParser()
+  parser.add_option('-u', '--url_list', default='urllist',
+                    help='The path to the list of URLs')
+  (opts, args) = parser.parse_args()
+
+  urls = LoadSiteList(opts.url_list)
+  ie = LaunchIE()
+  for url in urls:
+    RunTest(url, ie)
+    time.sleep(1)
+  ie.visible = 0
+  ie.Quit()
+
+
+if __name__ == '__main__':
+  main()