3 files changed, 22 insertions, 0 deletions
diff --git a/chrome/test/automation/automation_messages_internal.h b/chrome/test/automation/automation_messages_internal.h
index 82ae220..9c029c4 100644
--- a/chrome/test/automation/automation_messages_internal.h
+++ b/chrome/test/automation/automation_messages_internal.h
@@ -737,6 +737,12 @@ IPC_BEGIN_MESSAGES(Automation, 0)
   IPC_MESSAGE_ROUTED1(AutomationMsg_OpenFindInPageRequest,
                       int /* tab_handle */)
 
+  // Posts a message to the chrome renderer.
+  IPC_MESSAGE_ROUTED3(AutomationMsg_PostMessage,
+                      int /* automation handle */,
+                      std::string /* target */,
+                      std::string /* message */ )
+
   // A message for an external host.
   // |receiver| can be a receiving script and |message| is any
   // arbitrary string that makes sense to the receiver.
diff --git a/chrome/test/automation/tab_proxy.cc b/chrome/test/automation/tab_proxy.cc
index c359f34..6171ddb 100644
--- a/chrome/test/automation/tab_proxy.cc
+++ b/chrome/test/automation/tab_proxy.cc
@@ -928,3 +928,14 @@ bool TabProxy::SavePage(const std::wstring& file_name,
 
   return succeeded;
 }
+
+void TabProxy::PostMessage(AutomationHandle handle,
+                           const std::string& target,
+                           const std::string& message) {
+  if (!is_valid())
+    return;
+
+  bool succeeded =
+      sender_->Send(new AutomationMsg_PostMessage(0, handle, target, message));
+  DCHECK(succeeded);
+}
diff --git a/chrome/test/automation/tab_proxy.h b/chrome/test/automation/tab_proxy.h
index 6c2e660..24f2cb3 100644
--- a/chrome/test/automation/tab_proxy.h
+++ b/chrome/test/automation/tab_proxy.h
@@ -265,6 +265,11 @@ class TabProxy : public AutomationResourceProxy {
                 const std::wstring& dir_path,
                 SavePackage::SavePackageType type);
 
+  // Posts a message to the external tab.
+  void PostMessage(AutomationHandle handle,
+                   const std::string& target,
+                   const std::string& message);
+
  private:
   DISALLOW_EVIL_CONSTRUCTORS(TabProxy);
 };