[Extensions] Update Error Console UI

chrome/browser/extensions/error_console/error_console.cc

Index: chrome/browser/extensions/error_console/error_console.cc
diff --git a/chrome/browser/extensions/error_console/error_console.cc b/chrome/browser/extensions/error_console/error_console.cc
index 5dd23cc478f9dde4a41a42889cd89e0f7fc4dd1e..393f76f8e460dd8aa2d40cf7ed40f13e082c4f06 100644
--- a/chrome/browser/extensions/error_console/error_console.cc
+++ b/chrome/browser/extensions/error_console/error_console.cc
@@ -46,6 +46,13 @@ const char kAppsDeveloperToolsExtensionId[] =
 
 }  // namespace
 
+void ErrorConsole::Observer::OnErrorAdded(const ExtensionError* error) {
+}
+
+void ErrorConsole::Observer::OnErrorsRemoved(
+    const std::set<std::string>& extension_ids) {
+}
+
 void ErrorConsole::Observer::OnErrorConsoleDestroyed() {
 }
 
@@ -141,7 +148,9 @@ void ErrorConsole::ReportError(scoped_ptr<ExtensionError> error) {
 }
 
 void ErrorConsole::RemoveErrors(const ErrorMap::Filter& filter) {
-  errors_.RemoveErrors(filter);
+  std::set<std::string> affected_ids;
+  errors_.RemoveErrors(filter, &affected_ids);
+  FOR_EACH_OBSERVER(Observer, observers_, OnErrorsRemoved(affected_ids));
 }
 
 const ErrorList& ErrorConsole::GetErrorsForExtension(
@@ -231,7 +240,7 @@ void ErrorConsole::OnExtensionInstalled(
   // refresh of chrome:extensions, and we don't want to wipe our history
   // whenever that happens.
   errors_.RemoveErrors(ErrorMap::Filter::ErrorsForExtensionWithType(
-      extension->id(), ExtensionError::MANIFEST_ERROR));
+      extension->id(), ExtensionError::MANIFEST_ERROR), nullptr);
   AddManifestErrorsForExtension(extension);
 }
 
@@ -239,7 +248,8 @@ void ErrorConsole::OnExtensionUninstalled(
     content::BrowserContext* browser_context,
     const Extension* extension,
     extensions::UninstallReason reason) {
-  errors_.RemoveErrors(ErrorMap::Filter::ErrorsForExtension(extension->id()));
+  errors_.RemoveErrors(ErrorMap::Filter::ErrorsForExtension(extension->id()),
+                       nullptr);
 }
 
 void ErrorConsole::AddManifestErrorsForExtension(const Extension* extension) {
@@ -263,7 +273,7 @@ void ErrorConsole::Observe(int type,
   // If incognito profile which we are associated with is destroyed, also
   // destroy all incognito errors.
   if (profile->IsOffTheRecord() && profile_->IsSameProfile(profile))
-    errors_.RemoveErrors(ErrorMap::Filter::IncognitoErrors());
+    errors_.RemoveErrors(ErrorMap::Filter::IncognitoErrors(), nullptr);
 }
 
 int ErrorConsole::GetMaskForExtension(const std::string& extension_id) const {