Fix chromium-style compile error that got in the tree since yesterday.

chrome/common/render_messages_params.cc

Index: chrome/common/render_messages_params.cc
diff --git a/chrome/common/render_messages_params.cc b/chrome/common/render_messages_params.cc
index 40aa2aae569276d42e4d58bc3aac5e28e1afea22..a4c3ae60ed74c2c051f729bdb6955441cedc6435 100644
--- a/chrome/common/render_messages_params.cc
+++ b/chrome/common/render_messages_params.cc
@@ -272,6 +272,18 @@ ViewHostMsg_DomMessage_Params::ViewHostMsg_DomMessage_Params()
 ViewHostMsg_DomMessage_Params::~ViewHostMsg_DomMessage_Params() {
 }
 
+ViewHostMsg_MalwareDOMDetails_Node::ViewHostMsg_MalwareDOMDetails_Node() {
+}
+
+ViewHostMsg_MalwareDOMDetails_Node::~ViewHostMsg_MalwareDOMDetails_Node() {
+}
+
+ViewHostMsg_MalwareDOMDetails_Params::ViewHostMsg_MalwareDOMDetails_Params() {
+}
+
+ViewHostMsg_MalwareDOMDetails_Params::~ViewHostMsg_MalwareDOMDetails_Params() {
+}
+
 ViewMsg_ExtensionLoaded_Params::ViewMsg_ExtensionLoaded_Params() {
 }