Create AndroidCommandLineBackend to handle setting up cmdline args

tools/telemetry/telemetry/core/backends/android_browser_backend_settings.py

Index: tools/telemetry/telemetry/core/backends/android_browser_backend_settings.py
diff --git a/tools/telemetry/telemetry/core/backends/android_browser_backend_settings.py b/tools/telemetry/telemetry/core/backends/android_browser_backend_settings.py
new file mode 100644
index 0000000000000000000000000000000000000000..e08a84a170ff4e5f6df892633a21d44fb8d97bc8
--- /dev/null
+++ b/tools/telemetry/telemetry/core/backends/android_browser_backend_settings.py
@@ -0,0 +1,121 @@
+# Copyright 2013 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 logging
+import time
+
+from telemetry.core import exceptions
+
+
+class AndroidBrowserBackendSettings(object):
+
+  def __init__(self, activity, cmdline_file, package, pseudo_exec_name,
+               supports_tab_control):
+    self.activity = activity
+    self._cmdline_file = cmdline_file

[nednguyen, 2015/01/13 16:03:04]

Can you make the 3 properties below "immutable"?

[ariblue, 2015/01/13 20:23:37]

Done (added immutable property for self.activity, as well).

+    self.package = package
+    self.pseudo_exec_name = pseudo_exec_name
+    self.supports_tab_control = supports_tab_control
+
+  def GetCommandLineFile(self, is_user_debug_build):  # pylint: disable=W0613
+    return self._cmdline_file
+
+  def GetDevtoolsRemotePort(self, adb):
+    raise NotImplementedError()
+
+  @property
+  def profile_ignore_list(self):
+    # Don't delete lib, since it is created by the installer.
+    return ['lib']
+
+
+class ChromeBackendSettings(AndroidBrowserBackendSettings):
+  # Stores a default Preferences file, re-used to speed up "--page-repeat".
+  _default_preferences_file = None
+
+  def GetCommandLineFile(self, is_user_debug_build):
+    if is_user_debug_build:
+      return '/data/local/tmp/chrome-command-line'
+    else:
+      return '/data/local/chrome-command-line'
+
+  def __init__(self, package):
+    super(ChromeBackendSettings, self).__init__(
+        activity='com.google.android.apps.chrome.Main',
+        cmdline_file=None,
+        package=package,
+        pseudo_exec_name='chrome',
+        supports_tab_control=True)
+
+  def GetDevtoolsRemotePort(self, adb):
+    return 'localabstract:chrome_devtools_remote'
+
+
+class ContentShellBackendSettings(AndroidBrowserBackendSettings):
+  def __init__(self, package):
+    super(ContentShellBackendSettings, self).__init__(
+        activity='org.chromium.content_shell_apk.ContentShellActivity',
+        cmdline_file='/data/local/tmp/content-shell-command-line',
+        package=package,
+        pseudo_exec_name='content_shell',
+        supports_tab_control=False)
+
+  def GetDevtoolsRemotePort(self, adb):
+    return 'localabstract:content_shell_devtools_remote'
+
+
+class ChromeShellBackendSettings(AndroidBrowserBackendSettings):
+  def __init__(self, package):
+    super(ChromeShellBackendSettings, self).__init__(
+          activity='org.chromium.chrome.shell.ChromeShellActivity',
+          cmdline_file='/data/local/tmp/chrome-shell-command-line',
+          package=package,
+          pseudo_exec_name='chrome_shell',
+          supports_tab_control=False)
+
+  def GetDevtoolsRemotePort(self, adb):
+    return 'localabstract:chrome_shell_devtools_remote'
+
+
+class WebviewBackendSettings(AndroidBrowserBackendSettings):
+  def __init__(self,
+               package,
+               activity='org.chromium.telemetry_shell.TelemetryActivity',
+               cmdline_file='/data/local/tmp/webview-command-line'):
+    super(WebviewBackendSettings, self).__init__(
+        activity=activity,
+        cmdline_file=cmdline_file,
+        package=package,
+        pseudo_exec_name='webview',
+        supports_tab_control=False)
+
+  def GetDevtoolsRemotePort(self, adb):
+    # The DevTools socket name for WebView depends on the activity PID's.
+    retries = 0
+    timeout = 1
+    pid = None
+    while True:
+      pids = adb.ExtractPid(self.package)
+      if len(pids) > 0:
+        pid = pids[-1]
+        break
+      time.sleep(timeout)
+      retries += 1
+      timeout *= 2
+      if retries == 4:
+        logging.critical('android_browser_backend: Timeout while waiting for '
+                         'activity %s:%s to come up',
+                         self.package,
+                         self.activity)
+        raise exceptions.BrowserGoneException(self.browser,
+                                              'Timeout waiting for PID.')
+    return 'localabstract:webview_devtools_remote_%s' % str(pid)
+
+
+class WebviewShellBackendSettings(WebviewBackendSettings):
+  def __init__(self, package):
+    super(WebviewShellBackendSettings, self).__init__(
+        activity='org.chromium.android_webview.shell.AwShellActivity',
+        cmdline_file='/data/local/tmp/android-webview-command-line',
+        package=package)