Added an async automation message AutomationMsg_PrintAsync to asynchronously print a TabContents.

This is on the same lines as the existing sync message AutomationMsg_PrintNow

Review URL: http://codereview.chromium.org/149468

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20484 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 13 insertions, 0 deletions

diff --git a/chrome/browser/automation/automation_provider.cc b/chrome/browser/automation/automation_provider.cc
index f386960..49bd64f 100644
--- a/chrome/browser/automation/automation_provider.cc
+++ b/chrome/browser/automation/automation_provider.cc
@@ -1020,6 +1020,7 @@ void AutomationProvider::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(AutomationMsg_IsPageMenuCommandEnabled,
                         IsPageMenuCommandEnabled)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(AutomationMsg_PrintNow, PrintNow)
+    IPC_MESSAGE_HANDLER(AutomationMsg_PrintAsync, PrintAsync)
     IPC_MESSAGE_HANDLER(AutomationMsg_SavePage, SavePage)
     IPC_MESSAGE_HANDLER(AutomationMsg_AutocompleteEditGetText,
                         GetAutocompleteEditText)
@@ -2577,6 +2578,15 @@ void AutomationProvider::PrintNow(int tab_handle,
   AutomationMsg_PrintNow::WriteReplyParams(reply_message, false);
   Send(reply_message);
 }
+
+void AutomationProvider::PrintAsync(int tab_handle) {
+  NavigationController* tab = NULL;
+  TabContents* tab_contents = GetTabContentsForHandle(tab_handle, &tab);
+  if (tab_contents) {
+    if (tab_contents->PrintNow())
+      return;
+  }
+}
 #endif
 
 void AutomationProvider::SavePage(int tab_handle,
diff --git a/chrome/browser/automation/automation_provider.h b/chrome/browser/automation/automation_provider.h
index 3d90d04..8c57e7a 100644
--- a/chrome/browser/automation/automation_provider.h
+++ b/chrome/browser/automation/automation_provider.h
@@ -357,6 +357,9 @@ class AutomationProvider : public base::RefCounted<AutomationProvider>,
   // Prints the current tab immediately.
   void PrintNow(int tab_handle, IPC::Message* reply_message);
 
+  // Asynchronous request for printing the current tab.
+  void PrintAsync(int tab_handle);
+
   // Save the current web page.
   void SavePage(int tab_handle,
                 const std::wstring& file_name,