[Android WebView] Terminate execution of stuck JS code on navigation requests

android_webview/common/render_view_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included file, no traditional include guard.
 #include "android_webview/common/aw_hit_test_data.h"
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
@@ skipping 61 matching lines @@
 IPC_MESSAGE_ROUTED1(AwViewMsg_SetFixedLayoutSize,
                     gfx::Size /* size */)
 
 // Sets the base background color for this view.
 IPC_MESSAGE_ROUTED1(AwViewMsg_SetBackgroundColor,
                     SkColor)
 
 IPC_MESSAGE_CONTROL1(AwViewMsg_SetJsOnlineProperty,
                      bool /* network_up */)
 
+// Sent prior to making a navigation via loadUrl to make sure that
+// render thread isn't stuck in a loop induced by JavaScript code.
+IPC_MESSAGE_CONTROL0(AwViewMsg_CheckRenderThreadResponsiveness)
+
 //-----------------------------------------------------------------------------
 // RenderView messages
 // These are messages sent from the renderer to the browser process.
 
 // Response to AwViewMsg_DocumentHasImages request.
 IPC_MESSAGE_ROUTED2(AwViewHostMsg_DocumentHasImagesResponse,
                     int, /* id */
                     bool /* has_images */)
 
 // Response to AwViewMsg_DoHitTest.
@@ skipping 16 matching lines @@
 // or creating a URLRequest for the main frame resource.
 IPC_SYNC_MESSAGE_CONTROL2_1(AwViewHostMsg_ShouldOverrideUrlLoading,
                             int /* render_frame_id id */,
                             base::string16 /* in - url */,
                             bool /* out - result */)
 
 // Sent when a subframe is created.
 IPC_MESSAGE_CONTROL2(AwViewHostMsg_SubFrameCreated,
                      int /* parent_render_frame_id */,
                      int /* child_render_frame_id */)