Adds support for new-tab targeted loads initiated from the renderer.

services/navigation/public/interfaces/view.mojom

 // Copyright 2016 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.
 
 module navigation.mojom;
 
 import "components/mus/public/interfaces/window_tree.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "url/mojo/url.mojom";
 
+// TODO(beng): A general note about structs & methods in this file.
+//
+// These types are (for the most part) fairly rote copies of enums, structs &
+// interfaces from //content/public/browser & friends.
+// Not a huge amount of thought has been put into which values & methods should
+// be made available, the emphasis has been on getting a working service up and
+// running that is useful. It would be worth taking a pass through this set at
+// some point, condensing it, figuring out how it relates to stuff in
+// content/public/browser, etc.
+//
+// For now, it's duplicated here because this service is still experimental and
+// I didn't want to disrupt content/public/browser based on an experiment.
+
 // Copied from //content/public/browser/navigation_entry.h
 struct NavigationEntry {
   int32 id;
   url.mojom.Url url;
   string title;
   array<url.mojom.Url> redirect_chain;
 };
 
 // Copied from //content/public/browser/navigation_type.h
 enum NavigationType {
   UNKNOWN,
   NEW_PAGE,
   EXISTING_PAGE,
   SAME_PAGE,
   NEW_SUBFRAME,
   AUTO_SUBFRAME,
   NAV_IGNORE
 };
 
+// Copied from //ui/base/window_open_disposition.h
+enum WindowOpenDisposition {
+  UNKNOWN,
+  SUPPRESS_OPEN,
+  CURRENT_TAB,
+  SINGLETON_TAB,
+  NEW_FOREGROUND_TAB,
+  NEW_BACKGROUND_TAB,
+  NEW_POPUP,
+  NEW_WINDOW,
+  SAVE_TO_DISK,
+  OFF_THE_RECORD,
+  IGNORE_ACTION,
+  WINDOW_OPEN_DISPOSITION_LAST = IGNORE_ACTION
+};
+
 // Copied from //content/public/browser/navigation_details.h
 struct NavigationCommittedDetails {
   int32 entry;
   NavigationType type;
   int32 previous_entry_index;
   url.mojom.Url previous_url;
   bool did_replace_entry;
   bool is_in_page;
   bool is_main_frame;
   // SSLStatus ssl_status;
   int32 http_status_code;
 };
 
+// Copied from //content/public/browser/page_navigator.h
+struct OpenURLParams {
+  url.mojom.Url url;
+  WindowOpenDisposition disposition;
+};
+
 interface ViewFactory {
   CreateView(ViewClient client, View& view);
 };
 
 interface ViewClient {
+  OpenURL(OpenURLParams params);
   LoadingStateChanged(bool is_loading);
   NavigationStateChanged(url.mojom.Url url,
                          string title,
                          bool can_go_back,
                          bool can_go_forward);
   LoadProgressChanged(double progress);
   UpdateHoverURL(url.mojom.Url url);
 
   ViewCreated(View view,
               ViewClient& client,
@@ skipping 25 matching lines @@
   // UI.
   GetWindowTreeClient(mus.mojom.WindowTreeClient& client);
 
   ShowInterstitial(string html);
   HideInterstitial();
 
   // The resize area is a rectangle in the bottom corner of the view that allows
   // the top-level window containing the view to be interactively resized.
   SetResizerSize(gfx.mojom.Size size);
 };