Extract EventRouter from ExtensionSystem.

This patch removes event_router accessor from ExtensionSystem.
EventRouter is now a browser context keyed service.

BUG=496281

Review URL: https://codereview.chromium.org/1148983004

Cr-Commit-Position: refs/heads/master@{#332745}

2 files changed, 0 insertions, 11 deletions

diff --git a/extensions/shell/browser/shell_extension_system.cc b/extensions/shell/browser/shell_extension_system.cc
index e5cabb7..e5f5a52 100644
--- a/extensions/shell/browser/shell_extension_system.cc
+++ b/extensions/shell/browser/shell_extension_system.cc
@@ -14,7 +14,6 @@
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
-#include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/info_map.h"
@@ -97,8 +96,6 @@ void ShellExtensionSystem::Shutdown() {
 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
   runtime_data_.reset(
       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
-  event_router_.reset(
-      new EventRouter(browser_context_, ExtensionPrefs::Get(browser_context_)));
   quota_service_.reset(new QuotaService);
 }
 
@@ -132,10 +129,6 @@ InfoMap* ShellExtensionSystem::info_map() {
   return info_map_.get();
 }
 
-EventRouter* ShellExtensionSystem::event_router() {
-  return event_router_.get();
-}
-
 QuotaService* ShellExtensionSystem::quota_service() {
   return quota_service_.get();
 }
diff --git a/extensions/shell/browser/shell_extension_system.h b/extensions/shell/browser/shell_extension_system.h
index d4db30c..2cbdd5f 100644
--- a/extensions/shell/browser/shell_extension_system.h
+++ b/extensions/shell/browser/shell_extension_system.h
@@ -23,8 +23,6 @@ class BrowserContext;
 
 namespace extensions {
 
-class DeclarativeUserScriptManager;
-class EventRouter;
 class InfoMap;
 class ProcessManager;
 class RendererStartupHelper;
@@ -59,7 +57,6 @@ class ShellExtensionSystem : public ExtensionSystem {
   StateStore* state_store() override;
   StateStore* rules_store() override;
   InfoMap* info_map() override;
-  EventRouter* event_router() override;
   QuotaService* quota_service() override;
   void RegisterExtensionWithRequestContexts(
       const Extension* extension) override;
@@ -78,7 +75,6 @@ class ShellExtensionSystem : public ExtensionSystem {
   scoped_refptr<InfoMap> info_map_;
 
   scoped_ptr<RuntimeData> runtime_data_;
-  scoped_ptr<EventRouter> event_router_;
   scoped_ptr<QuotaService> quota_service_;
 
   // Signaled when the extension system has completed its startup tasks.