Make DeclarativeUserScriptManager non-shared between profiles.

chrome/browser/extensions/api/declarative_content/content_action.cc

Index: chrome/browser/extensions/api/declarative_content/content_action.cc
diff --git a/chrome/browser/extensions/api/declarative_content/content_action.cc b/chrome/browser/extensions/api/declarative_content/content_action.cc
index d920766888e631435a42c81fb068db9a1ec0ddcf..1a9e6aae712b000b534b31245fcb8a6c0a973810 100644
--- a/chrome/browser/extensions/api/declarative_content/content_action.cc
+++ b/chrome/browser/extensions/api/declarative_content/content_action.cc
@@ -20,8 +20,8 @@
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/declarative_user_script_manager.h"
+#include "extensions/browser/declarative_user_script_manager_factory.h"
 #include "extensions/browser/extension_registry.h"
-#include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_messages.h"
 #include "ui/gfx/image/image.h"
@@ -353,9 +353,8 @@ RequestContentScript::RequestContentScript(
   HostID host_id(HostID::EXTENSIONS, extension->id());
   InitScript(host_id, extension, script_data);
 
-  master_ = ExtensionSystem::Get(browser_context)
-                ->declarative_user_script_manager()
-                ->GetDeclarativeUserScriptMasterByID(host_id);
+  master_ = DeclarativeUserScriptManagerFactory::GetForBrowserContext(
+                browser_context)->GetDeclarativeUserScriptMasterByID(host_id);
   AddScript();
 }