Move allocate instance id to chrome/.

chrome/browser/extensions/api/webview/webview_api.cc

Index: chrome/browser/extensions/api/webview/webview_api.cc
diff --git a/chrome/browser/extensions/api/webview/webview_api.cc b/chrome/browser/extensions/api/webview/webview_api.cc
index cfa2e34e948dbba6db75d3766a594f6bbe501409..acd2c2fb3df3f830abbd61bb2b2f48df0bba5e7b 100644
--- a/chrome/browser/extensions/api/webview/webview_api.cc
+++ b/chrome/browser/extensions/api/webview/webview_api.cc
@@ -89,6 +89,17 @@ bool WebviewContextMenusCreateFunction::RunAsync() {
   return success;
 }
 
+bool WebviewNavigateFunction::RunAsyncSafe(WebViewGuest* guest) {
+  printf("++++ %s, guest = [%p]\n", __PRETTY_FUNCTION__, guest);
+  scoped_ptr<webview::Navigate::Params> params(
+      webview::Navigate::Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params.get());
+  std::string src = params->src;
+  printf("src was: %s\n", src.c_str());
+  guest->NavigateGuest(src);
+  return true;
+}
+
 bool WebviewContextMenusUpdateFunction::RunAsync() {
   scoped_ptr<webview::ContextMenusUpdate::Params> params(
       webview::ContextMenusUpdate::Params::Create(*args_));