Renderer changes for wiring up shared memory with declarative injection

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

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/extensions/api/declarative/declarative_rule.h"
+#include "chrome/browser/extensions/declarative_user_script_master.h"
 
 class Profile;
 
 namespace base {
 class Time;
 class Value;
 }
 
 namespace content {
 class WebContents;
@@ skipping 40 matching lines @@
   // Sets |error| and returns NULL in case of a semantic error that cannot
   // be caught by schema validation. Sets |bad_message| and returns NULL
   // in case the input is syntactically unexpected.
   static scoped_refptr<ContentAction> Create(
       content::BrowserContext* browser_context,
       const Extension* extension,
       const base::Value& json_action,
       std::string* error,
       bool* bad_message);
 
+  // Shared procedure for resetting error state within factories.
+  static void ResetErrorData(std::string* error, bool* bad_message) {
+    *error = "";
+    *bad_message = false;
+  }
+
+  // Shared procedure for validating JSON data.
+  static bool Validate(const base::Value& json_action,
+                       std::string* error,
+                       bool* bad_message,
+                       const base::DictionaryValue** action_dict,
+                       std::string* instance_type);
+
  protected:
   friend class base::RefCounted<ContentAction>;
   virtual ~ContentAction();
 };
 
+// Action that injects a content script.
+class RequestContentScript : public ContentAction {
+ public:
+  struct ScriptData {
+    ScriptData();
+    ~ScriptData();
+
+    std::vector<std::string> css_file_names;
+    std::vector<std::string> js_file_names;
+    bool all_frames;
+    bool match_about_blank;
+  };
+
+  RequestContentScript(content::BrowserContext* browser_context,
+                       const Extension* extension,
+                       const ScriptData& script_data);
+  RequestContentScript(DeclarativeUserScriptMaster* master,
+                       const Extension* extension,
+                       const ScriptData& script_data);
+
+  static scoped_refptr<ContentAction> Create(
+      content::BrowserContext* browser_context,
+      const Extension* extension,
+      const base::DictionaryValue* dict,
+      std::string* error,
+      bool* bad_message);
+
+  static scoped_refptr<ContentAction> CreateForTest(
+      DeclarativeUserScriptMaster* master,
+      const Extension* extension,
+      const base::Value& json_action,
+      std::string* error,
+      bool* bad_message);
+
+  static bool InitScriptData(const base::DictionaryValue* dict,
+                             std::string* error,
+                             bool* bad_message,
+                             ScriptData* script_data);
+
+  // Implementation of ContentAction:
+  virtual Type GetType() const OVERRIDE;
+
+  virtual void Apply(const std::string& extension_id,
+                     const base::Time& extension_install_time,
+                     ApplyInfo* apply_info) const OVERRIDE;
+
+  virtual void Reapply(const std::string& extension_id,
+                       const base::Time& extension_install_time,
+                       ApplyInfo* apply_info) const OVERRIDE;
+
+  virtual void Revert(const std::string& extension_id,
+                      const base::Time& extension_install_time,
+                      ApplyInfo* apply_info) const OVERRIDE;
+
+ private:
+  void InitScript(const Extension* extension, const ScriptData& script_data);
+
+  void AddScript() {
+    DCHECK(master_);
+    master_->AddScript(script_);
+  }
+
+  virtual ~RequestContentScript();
+
+  void InstructRenderProcessToInject(content::WebContents* contents,
+                                     const std::string& extension_id) const;
+
+  UserScript script_;
+  DeclarativeUserScriptMaster* master_;
+
+  DISALLOW_COPY_AND_ASSIGN(RequestContentScript);
+};
+
 typedef DeclarativeActionSet<ContentAction> ContentActionSet;
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_