Telemetry support for extensions.

tools/telemetry/telemetry/browser.py

Index: tools/telemetry/telemetry/browser.py
===================================================================
--- tools/telemetry/telemetry/browser.py	(revision 179975)
+++ tools/telemetry/telemetry/browser.py	(working copy)
@@ -4,6 +4,7 @@
 import os
 
 from telemetry import browser_credentials
+from telemetry import extension_dict
 from telemetry import tab_list
 from telemetry import temporary_http_server
 from telemetry import wpr_modes
@@ -27,6 +28,10 @@
     self._wpr_server = None
     self._platform = platform
     self._tabs = tab_list.TabList(browser_backend.tab_list_backend)
+    self._extensions = None
+    if not browser_backend.is_content_shell:

[nduca, 2013/02/01 00:25:50]

android isn't content shell.... treat these separately --- ask the browser
backend if it supports extensions

[achuithb, 2013/02/06 00:23:03]

Done.

+      self._extensions = extension_dict.ExtensionDict(
+          browser_backend.extension_dict_backend)
     self.credentials = browser_credentials.BrowserCredentials()
 
   def __enter__(self):
@@ -57,6 +62,10 @@
     return self._tabs
 
   @property

[nduca, 2013/02/01 00:25:50]

you dont have a supports_extensions property. you should.

[achuithb, 2013/02/06 00:23:03]

Done.

+  def extensions(self):

[nduca, 2013/02/01 00:25:50]

doc tring should say that this may not be there

accessor should raise  special exception if its not supported

   raise ExtensionsNotSupportedException) or something

[achuithb, 2013/02/06 00:23:03]

Done.

+    return self._extensions
+
+  @property
   def supports_tracing(self):
     return self._browser_backend.supports_tracing