Declarative content scripts: Renderer-side: per-extension shared memory regions (lazily loaded)

extensions/renderer/script_injection_manager.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/renderer/script_injection_manager.h"
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/public/renderer/render_view.h"
@@ skipping 118 matching lines @@
     int64 request_id) {
   manager_->HandlePermitScriptInjection(request_id);
 }
 
 void ScriptInjectionManager::RVOHelper::RunIdle(blink::WebFrame* frame) {
   manager_->InjectScripts(frame, UserScript::DOCUMENT_IDLE);
 }
 
 ScriptInjectionManager::ScriptInjectionManager(
     const ExtensionSet* extensions,
-    UserScriptSet* user_script_set)
+    UserScriptSetManager* user_script_set_manager)
     : extensions_(extensions),
-      user_script_set_(user_script_set),
-      user_script_set_observer_(this) {
-  user_script_set_observer_.Add(user_script_set_);
+      user_script_set_manager_(user_script_set_manager),
+      user_script_set_manager_observer_(this) {
+  user_script_set_manager_observer_.Add(user_script_set_manager_);
 }
 
 ScriptInjectionManager::~ScriptInjectionManager() {
 }
 
 void ScriptInjectionManager::OnRenderViewCreated(
     content::RenderView* render_view) {
   rvo_helpers_.push_back(new RVOHelper(render_view, this));
 }
 
@@ skipping 76 matching lines @@
       ++iter;
     }
   }
 
   // Try to inject any user scripts that should run for this location. If they
   // don't complete their injection (for example, waiting for a permission
   // response) then they will be added to |pending_injections_|.
   ScopedVector<ScriptInjection> user_script_injections;
   int tab_id = ExtensionHelper::Get(content::RenderView::FromWebView(
                                         frame->top()->view()))->tab_id();
-  user_script_set_->GetInjections(
+  user_script_set_manager_->GetAllInjections(
       &user_script_injections, frame, tab_id, run_location);
   for (ScopedVector<ScriptInjection>::iterator iter =
            user_script_injections.begin();
        iter != user_script_injections.end();) {
     scoped_ptr<ScriptInjection> injection(*iter);
     iter = user_script_injections.weak_erase(iter);
     if (!injection->TryToInject(run_location,
                                 extensions_->GetByID(injection->extension_id()),
                                 &scripts_run_info)) {
       pending_injections_.push_back(injection.release());
@@ skipping 55 matching lines @@
 
   ScriptsRunInfo scripts_run_info;
   if (injection->OnPermissionGranted(extensions_->GetByID(
                                          injection->extension_id()),
                                      &scripts_run_info)) {
     scripts_run_info.LogRun(injection->web_frame(), UserScript::RUN_DEFERRED);
   }
 }
 
 }  // namespace extensions