Modified components ui to address concern of all the time disabled check update button.

chrome/browser/component_updater/component_updater_service.cc

Index: chrome/browser/component_updater/component_updater_service.cc
diff --git a/chrome/browser/component_updater/component_updater_service.cc b/chrome/browser/component_updater/component_updater_service.cc
index fa04986f6829511953201f2f4fcabcf416b4cc2b..a1598fa788d2fb690ec1ea453d40d79f834c9279 100644
--- a/chrome/browser/component_updater/component_updater_service.cc
+++ b/chrome/browser/component_updater/component_updater_service.cc
@@ -170,6 +170,8 @@ class CrxUpdateService : public ComponentUpdateService {
   virtual Status OnDemandUpdate(const std::string& component_id) OVERRIDE;
   virtual void GetComponents(
       std::vector<CrxComponentInfo>* components) OVERRIDE;
+  virtual Status GetComponentStatus(const std::string& component_id) OVERRIDE;
+
   virtual content::ResourceThrottle* GetOnDemandResourceThrottle(
       net::URLRequest* request, const std::string& crx_id) OVERRIDE;
 
@@ -250,6 +252,8 @@ class CrxUpdateService : public ComponentUpdateService {
   void OnNewResourceThrottle(base::WeakPtr<CUResourceThrottle> rt,
                              const std::string& crx_id);
 
+  Status GetServiceStatus(const CrxUpdateItem::Status status);
+
   scoped_ptr<ComponentUpdateService::Configurator> config_;
 
   scoped_ptr<ComponentPatcher> component_patcher_;
@@ -509,28 +513,16 @@ ComponentUpdateService::Status CrxUpdateService::OnDemandUpdateInternal(
   if (delta < base::TimeDelta::FromSeconds(config_->OnDemandDelay()))
     return kError;
 
-  switch (uit->status) {
-    // If the item is already in the process of being updated, there is
-    // no point in this call, so return kInProgress.
-    case CrxUpdateItem::kChecking:
-    case CrxUpdateItem::kCanUpdate:
-    case CrxUpdateItem::kDownloadingDiff:
-    case CrxUpdateItem::kDownloading:
-    case CrxUpdateItem::kUpdatingDiff:
-    case CrxUpdateItem::kUpdating:
-      return kInProgress;
-    // Otherwise the item was already checked a while back (or it is new),
-    // set its status to kNew to give it a slightly higher priority.
-    case CrxUpdateItem::kNew:
-    case CrxUpdateItem::kUpdated:
-    case CrxUpdateItem::kUpToDate:
-    case CrxUpdateItem::kNoUpdate:
-      ChangeItemState(uit, CrxUpdateItem::kNew);
-      uit->on_demand = true;
-      break;
-    case CrxUpdateItem::kLastStatus:
-      NOTREACHED() << uit->status;
-  }
+  Status service_status = GetServiceStatus(uit->status);
+  // If the item is already in the process of being updated, there is
+  // no point in this call, so return kInProgress.
+  if (service_status == kInProgress)
+    return service_status;
+
+  // Otherwise the item was already checked a while back (or it is new),
+  // set its status to kNew to give it a slightly higher priority.
+  ChangeItemState(uit, CrxUpdateItem::kNew);
+  uit->on_demand = true;
 
   // In case the current delay is long, set the timer to a shorter value
   // to get the ball rolling.
@@ -553,10 +545,20 @@ void CrxUpdateService::GetComponents(
     info.id = GetCrxComponentID(item->component);
     info.version = item->component.version.GetString();
     info.name = item->component.name;
+    info.status = GetServiceStatus(item->status);
     components->push_back(info);
   }
 }
 
+ComponentUpdateService::Status CrxUpdateService::GetComponentStatus(
+    const std::string& component_id) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  CrxUpdateItem* crx = FindUpdateItemById(component_id);
+  return GetServiceStatus(crx->status);
+}
+
+
 // This is the main loop of the component updater. It updates one component
 // at a time if updates are available. Otherwise, it does an update check or
 // takes a long sleep until the loop runs again.
@@ -973,6 +975,28 @@ void CrxUpdateService::OnNewResourceThrottle(
   UnblockResourceThrottle(rt);
 }
 
+ComponentUpdateService::Status CrxUpdateService::GetServiceStatus(
+    CrxUpdateItem::Status status) {
+  switch (status) {
+    case CrxUpdateItem::kChecking:
+    case CrxUpdateItem::kCanUpdate:
+    case CrxUpdateItem::kDownloadingDiff:
+    case CrxUpdateItem::kDownloading:
+    case CrxUpdateItem::kUpdatingDiff:
+    case CrxUpdateItem::kUpdating:
+      return kInProgress;
+    case CrxUpdateItem::kNew:
+    case CrxUpdateItem::kUpdated:
+    case CrxUpdateItem::kUpToDate:
+    case CrxUpdateItem::kNoUpdate:
+      return kOk;
+      break;
+    case CrxUpdateItem::kLastStatus:
+      NOTREACHED() << status;
+  }
+  return kError;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 CUResourceThrottle::CUResourceThrottle(const net::URLRequest* request)