Allow POST requests made from an extension process to reuse the same process,

chrome/renderer/render_view.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/render_view.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 2396 matching lines @@
   bool is_content_initiated =
       NavigationState::FromDataSource(frame->provisionalDataSource())->
           is_content_initiated();
 
   // We only care about navigations that are within the current tab (as opposed
   // to, for example, opening a new window).
   // But we sometimes navigate to about:blank to clear a tab, and we want to
   // still allow that.
   if (default_policy == WebKit::WebNavigationPolicyCurrentTab &&
       is_content_initiated && frame->parent() == NULL &&
+      type != WebKit::WebNavigationTypeFormSubmitted &&
       !url.SchemeIs(chrome::kAboutScheme)) {
     // When we received such unsolicited navigations, we sometimes want to
     // punt them up to the browser to handle.
     if (CrossesExtensionExtents(frame, url) ||
         BindingsPolicy::is_dom_ui_enabled(enabled_bindings_) ||
         frame->isViewSourceModeEnabled() ||
         url.SchemeIs(chrome::kViewSourceScheme)) {
       OpenURL(url, GURL(), default_policy);
       return WebKit::WebNavigationPolicyIgnore;  // Suppress the load here.
     }
 
     // We forward navigations from extensions to the browser if they are
     // top-level events, even if the browser hasn't expressed interest.
     //
     // Note that we've already forwarded cross-extension extents navigations
     // above.
     if (BindingsPolicy::is_extension_enabled(enabled_bindings_) &&
-      IsNonLocalTopLevelNavigation(url, frame, type)) {
+        IsNonLocalTopLevelNavigation(url, frame, type)) {
         OpenURL(url, GURL(), default_policy);
         return WebKit::WebNavigationPolicyIgnore;  // Suppress the load here.
     }
   }
 
   // Detect when a page is "forking" a new tab that can be safely rendered in
   // its own process.  This is done by sites like Gmail that try to open links
   // in new windows without script connections back to the original page.  We
   // treat such cases as browser navigations (in which we will create a new
   // renderer for a cross-site navigation), rather than WebKit navigations.
@@ skipping 2704 matching lines @@
   webkit_glue::FormData form;
   const WebInputElement element = node.toConst<WebInputElement>();
   if (!form_manager_.FindFormWithFormControlElement(
           element, FormManager::REQUIRE_NONE, &form))
     return;
 
   autofill_action_ = action;
   Send(new ViewHostMsg_FillAutoFillFormData(
       routing_id_, autofill_query_id_, form, value, label));
 }