DevTools: allow embedder handling remote debugger commands.

chrome/browser/devtools/devtools_protocol.h

Index: chrome/browser/devtools/devtools_protocol.h
diff --git a/chrome/browser/devtools/devtools_protocol.h b/chrome/browser/devtools/devtools_protocol.h
index 9b15b9e3ac445939199b0a9b02483bcd7e1cde8b..2e658105c90d2874dd67a2e835ec5e07664ab8b8 100644
--- a/chrome/browser/devtools/devtools_protocol.h
+++ b/chrome/browser/devtools/devtools_protocol.h
@@ -16,6 +16,8 @@
 // from chrome component (see content/browser/devtools/devtools_protocol.*).
 class DevToolsProtocol {
  public:
+  class Response;
+
   class Message {
    public:
     virtual ~Message();
@@ -43,6 +45,12 @@ class DevToolsProtocol {
     int id() { return id_; }
     std::string Serialize();
 
+    // Creates success response. Takes ownership of |result|.
+    scoped_ptr<Response> SuccessResponse(base::DictionaryValue* result);
+
+    // Creates error response.
+    scoped_ptr<Response> InvalidParamResponse(const std::string& param);
+
    private:
     int id_;
 
@@ -56,12 +64,18 @@ class DevToolsProtocol {
     int id() { return id_; }
     int error_code() { return error_code_; }
 
+    // Result ownership is passed to the caller.
+    base::DictionaryValue* Serialize();
+
    private:
     friend class DevToolsProtocol;
 
-    Response(int id, int error_code);
+    Response(int id, int error_code, const std::string error_message);
+    Response(int id, base::DictionaryValue* result);
     int id_;
     int error_code_;
+    std::string error_message_;
+    scoped_ptr<base::DictionaryValue> result_;
 
     DISALLOW_COPY_AND_ASSIGN(Response);
   };
@@ -81,6 +95,9 @@ class DevToolsProtocol {
   };
 
   // Result ownership is passed to the caller.
+  static Command* ParseCommand(base::DictionaryValue* command_dict);
+
+  // Result ownership is passed to the caller.
   static Notification* ParseNotification(const std::string& json);
 
   // Result ownership is passed to the caller.