Improve error messaging of webRequest API in case of conflicts

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 9442e65cc7ef42bd1dc9aaeb1dd80b9d90748062..3d3fa936691cf7ac429cdc2a4a1daa0f359f9472 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -367,7 +367,6 @@ ExtensionService::ExtensionService(Profile* profile,
       browser_terminating_(false),
       app_sync_bundle_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       extension_sync_bundle_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
-      extension_warnings_(profile),
       app_shortcut_manager_(profile) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
@@ -869,12 +868,6 @@ bool ExtensionService::UninstallExtension(
   // Track the uninstallation.
   UMA_HISTOGRAM_ENUMERATION("Extensions.ExtensionUninstalled", 1, 2);
 
-  // Uninstalling one extension might have solved the problems of others.
-  // Therefore, we clear warnings of this type for all extensions.
-  std::set<ExtensionWarningSet::WarningType> warnings;
-  extension_warnings_.GetWarningsAffectingExtension(extension_id, &warnings);
-  extension_warnings_.ClearWarnings(warnings);
-
   return true;
 }
 
@@ -973,12 +966,6 @@ void ExtensionService::DisableExtension(
   }
 
   SyncExtensionChangeIfNeeded(*extension);
-
-  // Deactivating one extension might have solved the problems of others.
-  // Therefore, we clear warnings of this type for all extensions.
-  std::set<ExtensionWarningSet::WarningType> warnings;
-  extension_warnings_.GetWarningsAffectingExtension(extension_id, &warnings);
-  extension_warnings_.ClearWarnings(warnings);
 }
 
 void ExtensionService::GrantPermissionsAndEnableExtension(