DevTools: use WebDevToolsMessageData for devtools rpc messages

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=34333

Review URL: http://codereview.chromium.org/463065

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@34337 0039d316-1c4b-4281-b951-d872f2087c98

8 files changed, 177 insertions, 152 deletions

diff --git a/webkit/glue/devtools/devtools_message_data.cc b/webkit/glue/devtools/devtools_message_data.cc
new file mode 100644
index 0000000..68280fb
--- /dev/null
+++ b/webkit/glue/devtools/devtools_message_data.cc
@@ -0,0 +1,31 @@
+// Copyright (c) 2009 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 "config.h"
+
+#undef LOG
+
+#include "third_party/WebKit/WebKit/chromium/public/WebDevToolsMessageData.h"
+#include "webkit/glue/devtools/devtools_message_data.h"
+#include "webkit/glue/glue_util.h"
+
+DevToolsMessageData::DevToolsMessageData(
+    const WebKit::WebDevToolsMessageData& data)
+    : class_name(webkit_glue::WebStringToStdString(data.className)),
+      method_name(webkit_glue::WebStringToStdString(data.methodName)) {
+  for (size_t i = 0; i < data.arguments.size(); i++)
+    arguments.push_back(webkit_glue::WebStringToStdString(data.arguments[i]));
+}
+
+WebKit::WebDevToolsMessageData
+    DevToolsMessageData::ToWebDevToolsMessageData() const {
+  WebKit::WebDevToolsMessageData result;
+  result.className = webkit_glue::StdStringToWebString(class_name);
+  result.methodName = webkit_glue::StdStringToWebString(method_name);
+  WebKit::WebVector<WebKit::WebString> web_args(arguments.size());
+  for (size_t i = 0; i < arguments.size(); i++)
+    web_args[i] = webkit_glue::StdStringToWebString(arguments[i]);
+  result.arguments.swap(web_args);
+  return result;
+}
\ No newline at end of file
diff --git a/webkit/glue/devtools/devtools_message_data.h b/webkit/glue/devtools/devtools_message_data.h
new file mode 100644
index 0000000..4d28b84
--- /dev/null
+++ b/webkit/glue/devtools/devtools_message_data.h
@@ -0,0 +1,25 @@
+// Copyright (c) 2009 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 WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_MESSAGE_DATA_H_
+#define WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_MESSAGE_DATA_H_
+
+#include <string>
+#include <vector>
+
+namespace WebKit {
+struct WebDevToolsMessageData;
+}
+
+struct DevToolsMessageData {
+  DevToolsMessageData() {}
+  explicit DevToolsMessageData(const WebKit::WebDevToolsMessageData&);
+  WebKit::WebDevToolsMessageData ToWebDevToolsMessageData() const;
+
+  std::string class_name;
+  std::string method_name;
+  std::vector<std::string> arguments;
+};
+
+#endif  // WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_MESSAGE_DATA_H_
diff --git a/webkit/glue/devtools/devtools_rpc.h b/webkit/glue/devtools/devtools_rpc.h
index 819bd79..b0c60fe 100644
--- a/webkit/glue/devtools/devtools_rpc.h
+++ b/webkit/glue/devtools/devtools_rpc.h
@@ -51,14 +51,19 @@
 #define WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_RPC_H_
 
 #include "PlatformString.h"
+#include "Vector.h"
 
 #include <wtf/Noncopyable.h>
 
+#include "third_party/WebKit/WebKit/chromium/public/WebDevToolsMessageData.h"
+#include "webkit/glue/glue_util.h"
+
 namespace WebCore {
 class String;
 }
 
 using WebCore::String;
+using WTF::Vector;
 
 ///////////////////////////////////////////////////////
 // RPC dispatch macro
@@ -130,37 +135,35 @@ struct RpcTypeTrait<String> {
 
 #define TOOLS_RPC_STUB_METHOD0(Method) \
   virtual void Method() { \
-    this->delegate_->SendRpcMessage(class_name, #Method); \
+    Vector<String> args; \
+    this->SendRpcMessage(class_name, #Method, args); \
   }
 
 #define TOOLS_RPC_STUB_METHOD1(Method, T1) \
   virtual void Method(RpcTypeTrait<T1>::ApiType t1) { \
-    this->delegate_->SendRpcMessage( \
-        class_name, \
-        #Method, \
-        RpcTypeTrait<T1>::ToString(t1)); \
+    Vector<String> args(1); \
+    args[0] = RpcTypeTrait<T1>::ToString(t1); \
+    this->SendRpcMessage(class_name, #Method, args); \
   }
 
 #define TOOLS_RPC_STUB_METHOD2(Method, T1, T2) \
   virtual void Method(RpcTypeTrait<T1>::ApiType t1, \
                       RpcTypeTrait<T2>::ApiType t2) { \
-    this->delegate_->SendRpcMessage( \
-        class_name, \
-        #Method, \
-        RpcTypeTrait<T1>::ToString(t1), \
-        RpcTypeTrait<T2>::ToString(t2)); \
+    Vector<String> args(2); \
+    args[0] = RpcTypeTrait<T1>::ToString(t1); \
+    args[1] = RpcTypeTrait<T2>::ToString(t2); \
+    this->SendRpcMessage(class_name, #Method, args); \
   }
 
 #define TOOLS_RPC_STUB_METHOD3(Method, T1, T2, T3) \
   virtual void Method(RpcTypeTrait<T1>::ApiType t1, \
                       RpcTypeTrait<T2>::ApiType t2, \
                       RpcTypeTrait<T3>::ApiType t3) { \
-    this->delegate_->SendRpcMessage( \
-        class_name, \
-        #Method, \
-        RpcTypeTrait<T1>::ToString(t1), \
-        RpcTypeTrait<T2>::ToString(t2), \
-        RpcTypeTrait<T3>::ToString(t3)); \
+    Vector<String> args(3); \
+    args[0] = RpcTypeTrait<T1>::ToString(t1); \
+    args[1] = RpcTypeTrait<T2>::ToString(t2); \
+    args[2] = RpcTypeTrait<T3>::ToString(t3); \
+    this->SendRpcMessage(class_name, #Method, args); \
   }
 
 ///////////////////////////////////////////////////////
@@ -174,15 +177,15 @@ if (method_name == #Method) { \
 
 #define TOOLS_RPC_DISPATCH1(Method, T1) \
 if (method_name == #Method) { \
-  delegate->Method(RpcTypeTrait<T1>::Parse(p1)); \
+  delegate->Method(RpcTypeTrait<T1>::Parse(args[0])); \
   return true; \
 }
 
 #define TOOLS_RPC_DISPATCH2(Method, T1, T2) \
 if (method_name == #Method) { \
   delegate->Method( \
-      RpcTypeTrait<T1>::Parse(p1), \
-      RpcTypeTrait<T2>::Parse(p2) \
+      RpcTypeTrait<T1>::Parse(args[0]), \
+      RpcTypeTrait<T2>::Parse(args[1]) \
   ); \
   return true; \
 }
@@ -190,9 +193,9 @@ if (method_name == #Method) { \
 #define TOOLS_RPC_DISPATCH3(Method, T1, T2, T3) \
 if (method_name == #Method) { \
   delegate->Method( \
-      RpcTypeTrait<T1>::Parse(p1), \
-      RpcTypeTrait<T2>::Parse(p2), \
-      RpcTypeTrait<T3>::Parse(p3) \
+      RpcTypeTrait<T1>::Parse(args[0]), \
+      RpcTypeTrait<T2>::Parse(args[1]), \
+      RpcTypeTrait<T3>::Parse(args[2]) \
   ); \
   return true; \
 }
@@ -239,14 +242,16 @@ class Class##Dispatch : public Noncopyable { \
   virtual ~Class##Dispatch() {} \
   \
   static bool Dispatch(Class* delegate, \
-                       const WebCore::String& class_name, \
-                       const WebCore::String& method_name, \
-                       const WebCore::String& p1, \
-                       const WebCore::String& p2, \
-                       const WebCore::String& p3) { \
+                       const WebKit::WebDevToolsMessageData& data) { \
+    String class_name = webkit_glue::WebStringToString(data.className); \
     if (class_name != #Class) { \
       return false; \
     } \
+    String method_name = webkit_glue::WebStringToString(data.methodName); \
+    Vector<String> args; \
+    for (size_t i = 0; i < data.arguments.size(); i++) { \
+      args.append(webkit_glue::WebStringToString(data.arguments[i])); \
+    } \
     typedef Class CLASS; \
     STRUCT( \
         TOOLS_RPC_DISPATCH0, \
@@ -265,11 +270,8 @@ class DevToolsRpc {
    public:
     Delegate() {}
     virtual ~Delegate() {}
-    virtual void SendRpcMessage(const WebCore::String& class_name,
-                                const WebCore::String& method_name,
-                                const WebCore::String& p1 = "",
-                                const WebCore::String& p2 = "",
-                                const WebCore::String& p3 = "") = 0;
+    virtual void SendRpcMessage(
+        const WebKit::WebDevToolsMessageData& data) = 0;
   };
 
   explicit DevToolsRpc(Delegate* delegate)
@@ -277,6 +279,20 @@ class DevToolsRpc {
   virtual ~DevToolsRpc() {};
 
  protected:
+  void SendRpcMessage(const String& class_name,
+                      const String& method_name,
+                      const Vector<String>& args) {
+    WebKit::WebVector<WebKit::WebString> web_args(args.size());
+    for (size_t i = 0; i < args.size(); i++) {
+      web_args[i] = webkit_glue::StringToWebString(args[i]);
+    }
+    WebKit::WebDevToolsMessageData data;
+    data.className = webkit_glue::StringToWebString(class_name);
+    data.methodName = webkit_glue::StringToWebString(method_name);
+    data.arguments.swap(web_args);
+    this->delegate_->SendRpcMessage(data);
+  }
+
   Delegate* delegate_;
 };
 
diff --git a/webkit/glue/devtools/devtools_rpc_js.h b/webkit/glue/devtools/devtools_rpc_js.h
index c4cfc47..f51d5f6 100644
--- a/webkit/glue/devtools/devtools_rpc_js.h
+++ b/webkit/glue/devtools/devtools_rpc_js.h
@@ -33,36 +33,25 @@
 
 #define TOOLS_RPC_JS_STUB_METHOD0(Method) \
   static v8::Handle<v8::Value> Js##Method(const v8::Arguments& args) { \
-    SendRpcMessage(v8::External::Cast(*args.Data())->Value(), \
-                   #Method, "", "", ""); \
+    SendRpcMessageFromJs(#Method, args, 0); \
     return v8::Undefined(); \
   }
 
 #define TOOLS_RPC_JS_STUB_METHOD1(Method, T1) \
   static v8::Handle<v8::Value> Js##Method(const v8::Arguments& args) { \
-    SendRpcMessage(v8::External::Cast(*args.Data())->Value(), \
-                   #Method, \
-                   WebCore::toWebCoreStringWithNullCheck(args[0]), "", ""); \
+    SendRpcMessageFromJs(#Method, args, 1); \
     return v8::Undefined(); \
   }
 
 #define TOOLS_RPC_JS_STUB_METHOD2(Method, T1, T2) \
   static v8::Handle<v8::Value> Js##Method(const v8::Arguments& args) { \
-    SendRpcMessage(v8::External::Cast(*args.Data())->Value(), \
-                   #Method, \
-                   WebCore::toWebCoreStringWithNullCheck(args[0]), \
-                   WebCore::toWebCoreStringWithNullCheck(args[1]), \
-                   ""); \
+    SendRpcMessageFromJs(#Method, args, 2); \
     return v8::Undefined(); \
   }
 
 #define TOOLS_RPC_JS_STUB_METHOD3(Method, T1, T2, T3) \
   static v8::Handle<v8::Value> Js##Method(const v8::Arguments& args) { \
-    SendRpcMessage(v8::External::Cast(*args.Data())->Value(), \
-                   #Method, \
-                   WebCore::toWebCoreStringWithNullCheck(args[0]), \
-                   WebCore::toWebCoreStringWithNullCheck(args[1]), \
-                   WebCore::toWebCoreStringWithNullCheck(args[2])); \
+    SendRpcMessageFromJs(#Method, args, 3); \
     return v8::Undefined(); \
   }
 
@@ -92,18 +81,16 @@ class Js##Class##BoundObj : public Class##Stub { \
       TOOLS_RPC_JS_STUB_METHOD2, \
       TOOLS_RPC_JS_STUB_METHOD3) \
  private: \
-  static void SendRpcMessage(void* self_ptr, \
-                             const char* method, \
-                             const String& param1, \
-                             const String& param2, \
-                             const String& param3) { \
+  static void SendRpcMessageFromJs(const char* method, \
+                                   const v8::Arguments& js_arguments, \
+                                   size_t args_count) { \
+    Vector<String> args(args_count); \
+    for (size_t i = 0; i < args_count; i++) { \
+      args[i] = WebCore::toWebCoreStringWithNullCheck(js_arguments[i]); \
+    } \
+    void* self_ptr = v8::External::Cast(*js_arguments.Data())->Value(); \
     Js##Class##BoundObj* self = static_cast<Js##Class##BoundObj*>(self_ptr); \
-    self->delegate_->SendRpcMessage( \
-        #Class, \
-        method, \
-        param1, \
-        param2, \
-        param3); \
+    self->SendRpcMessage(#Class, method, args); \
   } \
 };
 
diff --git a/webkit/glue/webdevtoolsagent_impl.cc b/webkit/glue/webdevtoolsagent_impl.cc
index 24b85bb..42fcbb8 100644
--- a/webkit/glue/webdevtoolsagent_impl.cc
+++ b/webkit/glue/webdevtoolsagent_impl.cc
@@ -30,6 +30,7 @@
 
 #include "third_party/WebKit/WebKit/chromium/public/WebDataSource.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDevToolsAgentClient.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebDevToolsMessageData.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
@@ -68,6 +69,7 @@ using WebCore::V8DOMWrapper;
 using WebCore::V8Proxy;
 using WebKit::WebDataSource;
 using WebKit::WebDevToolsAgentClient;
+using WebKit::WebDevToolsMessageData;
 using WebKit::WebFrame;
 using WebKit::WebFrameImpl;
 using WebKit::WebPoint;
@@ -117,17 +119,9 @@ class IoRpcDelegate : public DevToolsRpc::Delegate {
  public:
   IoRpcDelegate() {}
   virtual ~IoRpcDelegate() {}
-  virtual void SendRpcMessage(const String& class_name,
-                              const String& method_name,
-                              const String& p1,
-                              const String& p2,
-                              const String& p3) {
-    WebDevToolsAgentClient::sendMessageToFrontendOnIOThread(
-        webkit_glue::StringToWebString(class_name),
-        webkit_glue::StringToWebString(method_name),
-        webkit_glue::StringToWebString(p1),
-        webkit_glue::StringToWebString(p2),
-        webkit_glue::StringToWebString(p3));
+  virtual void SendRpcMessage(
+      const WebKit::WebDevToolsMessageData& data) {
+    WebDevToolsAgentClient::sendMessageToFrontendOnIOThread(data);
   }
 
  private:
@@ -286,19 +280,20 @@ void WebDevToolsAgentImpl::GetResourceContent(
   tools_agent_native_delegate_stub_->DidGetResourceContent(call_id, content);
 }
 
+// TODO(yurys): this method is deprecated and will go away soon, use
+// overloaded method with WebDevToolsMessageData argument instead.
 void WebDevToolsAgentImpl::dispatchMessageFromFrontend(
     const WebString& class_name,
     const WebString& method_name,
     const WebString& param1,
     const WebString& param2,
     const WebString& param3) {
-  if (ToolsAgentDispatch::Dispatch(
-      this,
-      webkit_glue::WebStringToString(class_name),
-      webkit_glue::WebStringToString(method_name),
-      webkit_glue::WebStringToString(param1),
-      webkit_glue::WebStringToString(param2),
-      webkit_glue::WebStringToString(param3))) {
+  ASSERT_NOT_REACHED();
+}
+
+void WebDevToolsAgentImpl::dispatchMessageFromFrontend(
+    const WebDevToolsMessageData& data) {
+  if (ToolsAgentDispatch::Dispatch(this, data)) {
     return;
   }
 
@@ -307,22 +302,11 @@ void WebDevToolsAgentImpl::dispatchMessageFromFrontend(
   }
 
   if (debugger_agent_impl_.get() &&
-      DebuggerAgentDispatch::Dispatch(
-          debugger_agent_impl_.get(),
-          webkit_glue::WebStringToString(class_name),
-          webkit_glue::WebStringToString(method_name),
-          webkit_glue::WebStringToString(param1),
-          webkit_glue::WebStringToString(param2),
-          webkit_glue::WebStringToString(param3))) {
+      DebuggerAgentDispatch::Dispatch(debugger_agent_impl_.get(), data)) {
     return;
   }
 }
 
-void WebDevToolsAgentImpl::dispatchMessageFromFrontend(
-     const WebKit::WebDevToolsMessageData& data) {
-  // Stub.
-}
-
 void WebDevToolsAgentImpl::inspectElementAt(const WebPoint& point) {
   web_view_impl_->inspectElementAt(point);
 }
@@ -344,17 +328,8 @@ void WebDevToolsAgentImpl::setRuntimeFeatureEnabled(const WebString& wfeature,
 }
 
 void WebDevToolsAgentImpl::SendRpcMessage(
-    const String& class_name,
-    const String& method_name,
-    const String& param1,
-    const String& param2,
-    const String& param3) {
-  client_->sendMessageToFrontend(
-      webkit_glue::StringToWebString(class_name),
-      webkit_glue::StringToWebString(method_name),
-      webkit_glue::StringToWebString(param1),
-      webkit_glue::StringToWebString(param2),
-      webkit_glue::StringToWebString(param3));
+    const WebKit::WebDevToolsMessageData& data) {
+  client_->sendMessageToFrontend(data);
 }
 
 void WebDevToolsAgentImpl::InitDevToolsAgentHost() {
@@ -640,6 +615,8 @@ void WebDevToolsAgent::setMessageLoopDispatchHandler(
   DebuggerAgentManager::SetMessageLoopDispatchHandler(handler);
 }
 
+// TODO(yurys): this method is deprecated and will go away soon, use
+// overloaded method with WebDevToolsMessageData argument instead.
 // static
 bool WebDevToolsAgent::dispatchMessageFromFrontendOnIOThread(
     const WebString& className,
@@ -647,16 +624,27 @@ bool WebDevToolsAgent::dispatchMessageFromFrontendOnIOThread(
     const WebString& param1,
     const WebString& param2,
     const WebString& param3) {
+  WebKit::WebVector<WebString> arguments(static_cast<size_t>(3));
+  arguments[0] = param1;
+  arguments[1] = param2;
+  arguments[2] = param3;
+
+  WebDevToolsMessageData data;
+  data.className = className;
+  data.methodName = methodName;
+  data.arguments.swap(arguments);
+  // Delegate to overloaded method. This method will go away soon.
+  return WebDevToolsAgent::dispatchMessageFromFrontendOnIOThread(data);
+}
+
+// static
+bool WebDevToolsAgent::dispatchMessageFromFrontendOnIOThread(
+    const WebDevToolsMessageData& data) {
   IoRpcDelegate transport;
   ProfilerAgentDelegateStub stub(&transport);
   ProfilerAgentImpl agent(&stub);
-  return ProfilerAgentDispatch::Dispatch(
-      &agent,
-      webkit_glue::WebStringToString(className),
-      webkit_glue::WebStringToString(methodName),
-      webkit_glue::WebStringToString(param1),
-      webkit_glue::WebStringToString(param2),
-      webkit_glue::WebStringToString(param3));
+  return ProfilerAgentDispatch::Dispatch(&agent, data);
 }
 
+
 } // namespace WebKit
diff --git a/webkit/glue/webdevtoolsagent_impl.h b/webkit/glue/webdevtoolsagent_impl.h
index 65c7eb3..84c7483 100644
--- a/webkit/glue/webdevtoolsagent_impl.h
+++ b/webkit/glue/webdevtoolsagent_impl.h
@@ -101,11 +101,7 @@ class WebDevToolsAgentImpl : public WebKit::WebDevToolsAgentPrivate,
       const WebKit::WebURLError& error);
 
   // DevToolsRpc::Delegate implementation.
-  void SendRpcMessage(const WebCore::String& class_name,
-                      const WebCore::String& method_name,
-                      const WebCore::String& param1,
-                      const WebCore::String& param2,
-                      const WebCore::String& param3);
+  virtual void SendRpcMessage(const WebKit::WebDevToolsMessageData& data);
 
   void ForceRepaint();
 
diff --git a/webkit/glue/webdevtoolsfrontend_impl.cc b/webkit/glue/webdevtoolsfrontend_impl.cc
index 15a50a9..1048a41 100644
--- a/webkit/glue/webdevtoolsfrontend_impl.cc
+++ b/webkit/glue/webdevtoolsfrontend_impl.cc
@@ -36,6 +36,7 @@
 #include "third_party/WebKit/WebKit/chromium/src/WebViewImpl.h"
 #include "webkit/glue/devtools/bound_object.h"
 #include "webkit/glue/devtools/debugger_agent.h"
+#include "webkit/glue/devtools/devtools_message_data.h"
 #include "webkit/glue/devtools/devtools_rpc_js.h"
 #include "webkit/glue/devtools/profiler_agent.h"
 #include "webkit/glue/devtools/tools_agent.h"
@@ -218,28 +219,29 @@ WebDevToolsFrontendImpl::~WebDevToolsFrontendImpl() {
   menu_selection_handler_->disconnect();
 }
 
+// TODO(yurys): this method is deprecated and will go away soon, use
+// overloaded method with WebDevToolsMessageData argument instead.
 void WebDevToolsFrontendImpl::dispatchMessageFromAgent(
       const WebString& class_name,
       const WebString& method_name,
       const WebString& param1,
       const WebString& param2,
       const WebString& param3) {
+  ASSERT_NOT_REACHED();
+}
+
+void WebDevToolsFrontendImpl::dispatchMessageFromAgent(
+    const WebKit::WebDevToolsMessageData& data) {
   if (ToolsAgentNativeDelegateDispatch::Dispatch(
           tools_agent_native_delegate_impl_.get(),
-          webkit_glue::WebStringToString(class_name),
-          webkit_glue::WebStringToString(method_name),
-          webkit_glue::WebStringToString(param1),
-          webkit_glue::WebStringToString(param2),
-          webkit_glue::WebStringToString(param3))) {
+          data)) {
     return;
   }
-
   Vector<String> v;
-  v.append(webkit_glue::WebStringToString(class_name));
-  v.append(webkit_glue::WebStringToString(method_name));
-  v.append(webkit_glue::WebStringToString(param1));
-  v.append(webkit_glue::WebStringToString(param2));
-  v.append(webkit_glue::WebStringToString(param3));
+  v.append(webkit_glue::WebStringToString(data.className));
+  v.append(webkit_glue::WebStringToString(data.methodName));
+  for (size_t i = 0; i < data.arguments.size(); i++)
+    v.append(webkit_glue::WebStringToString(data.arguments[i]));
   if (!loaded_) {
     pending_incoming_messages_.append(v);
     return;
@@ -247,11 +249,6 @@ void WebDevToolsFrontendImpl::dispatchMessageFromAgent(
   ExecuteScript(v);
 }
 
-void WebDevToolsFrontendImpl::dispatchMessageFromAgent(
-    const WebKit::WebDevToolsMessageData& data) {
-  // Stub.
-}
-
 void WebDevToolsFrontendImpl::AddResourceSourceToFrame(int resource_id,
                                                      String mime_type,
                                                      Node* frame) {
@@ -271,15 +268,12 @@ void WebDevToolsFrontendImpl::ExecuteScript(const Vector<String>& v) {
   v8::Handle<v8::Value> dispatch_function =
       frame_context->Global()->Get(v8::String::New("devtools$$dispatch"));
   ASSERT(dispatch_function->IsFunction());
-  v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(dispatch_function);
-  v8::Handle<v8::Value> args[] = {
-    ToV8String(v.at(0)),
-    ToV8String(v.at(1)),
-    ToV8String(v.at(2)),
-    ToV8String(v.at(3)),
-    ToV8String(v.at(4)),
-  };
-  function->Call(frame_context->Global(), 5, args);
+  v8::Handle<v8::Function> function =
+      v8::Handle<v8::Function>::Cast(dispatch_function);
+  Vector< v8::Handle<v8::Value> > args;
+  for (size_t i = 0; i < v.size(); i++)
+    args.append(ToV8String(v.at(i)));
+  function->Call(frame_context->Global(), args.size(), args.data());
 }
 
 void WebDevToolsFrontendImpl::DispatchOnWebInspector(
@@ -306,17 +300,9 @@ void WebDevToolsFrontendImpl::DispatchOnWebInspector(
 }
 
 
-void WebDevToolsFrontendImpl::SendRpcMessage(const String& class_name,
-                                           const String& method_name,
-                                           const String& param1,
-                                           const String& param2,
-                                           const String& param3) {
-  client_->sendMessageToAgent(
-      webkit_glue::StringToWebString(class_name),
-      webkit_glue::StringToWebString(method_name),
-      webkit_glue::StringToWebString(param1),
-      webkit_glue::StringToWebString(param2),
-      webkit_glue::StringToWebString(param3));
+void WebDevToolsFrontendImpl::SendRpcMessage(
+    const WebKit::WebDevToolsMessageData& data) {
+  client_->sendMessageToAgent(data);
 }
 
 void WebDevToolsFrontendImpl::ContextMenuItemSelected(
diff --git a/webkit/glue/webdevtoolsfrontend_impl.h b/webkit/glue/webdevtoolsfrontend_impl.h
index 7557ea1..e60e7d5 100644
--- a/webkit/glue/webdevtoolsfrontend_impl.h
+++ b/webkit/glue/webdevtoolsfrontend_impl.h
@@ -48,11 +48,7 @@ class WebDevToolsFrontendImpl : public WebKit::WebDevToolsFrontend,
   virtual ~WebDevToolsFrontendImpl();
 
   // DevToolsRpc::Delegate implementation.
-  virtual void SendRpcMessage(const String& class_name,
-                              const String& method_name,
-                              const String& param1,
-                              const String& param2,
-                              const String& param3);
+  virtual void SendRpcMessage(const WebKit::WebDevToolsMessageData& data);
 
   // WebDevToolsFrontend implementation.
   virtual void dispatchMessageFromAgent(const WebKit::WebString& class_name,