Pass handle of the native view window to the native messaging host.

chrome/browser/extensions/api/messaging/native_message_process_host.cc

Index: chrome/browser/extensions/api/messaging/native_message_process_host.cc
diff --git a/chrome/browser/extensions/api/messaging/native_message_process_host.cc b/chrome/browser/extensions/api/messaging/native_message_process_host.cc
index 749cb43c9f483c1f7936def9e097934bf50c11f0..dbede7913bf08177c5807acebe527e66e47ea85d 100644
--- a/chrome/browser/extensions/api/messaging/native_message_process_host.cc
+++ b/chrome/browser/extensions/api/messaging/native_message_process_host.cc
@@ -13,6 +13,8 @@
 #include "chrome/browser/extensions/api/messaging/native_process_launcher.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/extensions/features/feature.h"
+#include "content/public/browser/render_widget_host.h"
+#include "content/public/browser/render_widget_host_view.h"
 #include "extensions/common/constants.h"
 #include "net/base/file_stream.h"
 #include "net/base/io_buffer.h"
@@ -77,13 +79,20 @@ NativeMessageProcessHost::~NativeMessageProcessHost() {
 
 // static
 scoped_ptr<NativeMessageProcessHost> NativeMessageProcessHost::Create(
+    int source_process_id,

[Sergey Ulanov, 2013/08/07 22:51:20]

instead of passing process_id and routing_id pair, can the caller provide
native_view pointer instead?

[alexeypa (please no reviews), 2013/08/08 16:57:32]

Done.

+    int source_routing_id,
     base::WeakPtr<Client> weak_client_ui,
     const std::string& source_extension_id,
     const std::string& native_host_name,
     int destination_port) {
+  // Get handle of the native view and pass it to the launcher. The launcher
+  // will later pass the handle to the native messaging host process.
+  gfx::NativeWindow native_view =
+      content::RenderWidgetHost::FromID(source_process_id, source_routing_id)->
+          GetView()->GetNativeView();
   return CreateWithLauncher(weak_client_ui, source_extension_id,
                             native_host_name, destination_port,
-                            NativeProcessLauncher::CreateDefault());
+                            NativeProcessLauncher::CreateDefault(native_view));
 }
 
 // static