Fix a crash in PageActionImageView when extensions are reloaded due to incognito settings changing.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
===================================================================
--- chrome/test/base/testing_profile.cc	(revision 107550)
+++ chrome/test/base/testing_profile.cc	(working copy)
@@ -344,6 +344,7 @@
   // Extension pref store, created for use by |extension_prefs_|.
 
   extension_pref_value_map_.reset(new ExtensionPrefValueMap);
+  extension_process_manager_.reset(ExtensionProcessManager::Create(this));

[Matt Perry, 2011/10/27 18:05:28]

we might not want to do this all the time. i think it will spawn extension
processes every time an extension is loaded. consider moving it to a separate
Create helper and only call it from the tests that need it.

 
   bool extensions_disabled =
       command_line && command_line->HasSwitch(switches::kDisableExtensions);
@@ -440,7 +441,7 @@
 }
 
 ExtensionProcessManager* TestingProfile::GetExtensionProcessManager() {
-  return NULL;
+  return extension_process_manager_.get();
 }
 
 ExtensionMessageService* TestingProfile::GetExtensionMessageService() {