Implement sidebar support for extension action popups

chrome/common/extensions/api/extension_action/action_info.cc

Index: chrome/common/extensions/api/extension_action/action_info.cc
diff --git a/chrome/common/extensions/api/extension_action/action_info.cc b/chrome/common/extensions/api/extension_action/action_info.cc
index 8cf0386d3613ed37f4524ca95cfa98975ac805c4..2252dfa35d8c9c2f9708464ef58eed5327f3d605 100644
--- a/chrome/common/extensions/api/extension_action/action_info.cc
+++ b/chrome/common/extensions/api/extension_action/action_info.cc
@@ -45,7 +45,7 @@ static const ActionInfo* GetActionInfo(const Extension* extension,
 
 }  // namespace
 
-ActionInfo::ActionInfo() {
+ActionInfo::ActionInfo() : open_in_sidebar(false) {
 }
 
 ActionInfo::~ActionInfo() {
@@ -182,6 +182,9 @@ scoped_ptr<ActionInfo> ActionInfo::Load(const Extension* extension,
     }
   }
 
+  // Should open popup in sidebar?
+  dict->GetBoolean(keys::kPageActionOpenInSidebar, &result->open_in_sidebar);
+
   return result.Pass();
 }