Refactor postMessage for out-of-process iframes.

content/common/frame_messages.h

 // Copyright 2013 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.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/frame_message_enums.h"
 #include "content/common/frame_param.h"
 #include "content/common/frame_replication_state.h"
 #include "content/common/navigation_gesture.h"
 #include "content/common/navigation_params.h"
 #include "content/common/resource_request_body.h"
 #include "content/public/common/color_suggestion.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/frame_navigate_params.h"
 #include "content/public/common/javascript_message_type.h"
+#include "content/public/common/message_port_types.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/resource_response.h"
 #include "content/public/common/transition_element.h"
 #include "ipc/ipc_message_macros.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 #include "url/gurl.h"
 #include "url/origin.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
@@ skipping 166 matching lines @@
   IPC_STRUCT_MEMBER(url::Origin, origin)
 
   // How navigation metrics starting on UI action for this load should be
   // reported.
   IPC_STRUCT_MEMBER(FrameMsg_UILoadMetricsReportType::Value, report_type)
 
   // Timestamp at which the UI action that triggered the navigation originated.
   IPC_STRUCT_MEMBER(base::TimeTicks, ui_timestamp)
 IPC_STRUCT_END()
 
+IPC_STRUCT_BEGIN(FrameMsg_PostMessage_Params)
+  // Whether the data format is supplied as serialized script value, or as
+  // a simple string. If it is a raw string, must be converted from string to a
+  // WebSerializedScriptValue in renderer.
+  IPC_STRUCT_MEMBER(bool, is_data_raw_string)
+
+  // The serialized script value.
+  IPC_STRUCT_MEMBER(base::string16, data)
+
+  // When sent to the browser, this is the routing ID of the source frame in
+  // the source process.  The browser replaces it with the routing ID of the
+  // equivalent frame proxy in the destination process.
+  IPC_STRUCT_MEMBER(int, source_routing_id)
+
+  // When sent from the browser, this is the routing ID of the source view in
+  // the destination process.  This currently exists only to support legacy
+  // postMessage to Android WebView and will be removed once crbug.com/473258
+  // is fixed.
+  IPC_STRUCT_MEMBER(int, source_view_routing_id)
+
+  // The origin of the source frame.
+  IPC_STRUCT_MEMBER(base::string16, source_origin)
+
+  // The origin for the message's target.
+  IPC_STRUCT_MEMBER(base::string16, target_origin)
+
+  // Information about the MessagePorts this message contains.
+  IPC_STRUCT_MEMBER(std::vector<content::TransferredMessagePort>, message_ports)
+  IPC_STRUCT_MEMBER(std::vector<int>, new_routing_ids)
+IPC_STRUCT_END()
+
 IPC_STRUCT_TRAITS_BEGIN(content::CommonNavigationParams)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(referrer)
   IPC_STRUCT_TRAITS_MEMBER(transition)
   IPC_STRUCT_TRAITS_MEMBER(navigation_type)
   IPC_STRUCT_TRAITS_MEMBER(allow_download)
   IPC_STRUCT_TRAITS_MEMBER(ui_timestamp)
   IPC_STRUCT_TRAITS_MEMBER(report_type)
   IPC_STRUCT_TRAITS_MEMBER(base_url_for_data_url)
   IPC_STRUCT_TRAITS_MEMBER(history_url_for_data_url)
@@ skipping 259 matching lines @@
 // Dispatch a load event in the iframe element containing this frame.
 IPC_MESSAGE_ROUTED0(FrameMsg_DispatchLoad)
 
 // Notifies the frame that its parent has changed the frame's sandbox flags.
 IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateSandboxFlags, content::SandboxFlags)
 
 // Update a proxy's window.name property.  Used when the frame's name is
 // changed in another process.
 IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateName, std::string /* name */)
 
+// Posts a message from a frame in another process to the current renderer.
+IPC_MESSAGE_ROUTED1(FrameMsg_PostMessageEvent, FrameMsg_PostMessage_Params)
+
 #if defined(OS_ANDROID)
 
 // External popup menus.
 IPC_MESSAGE_ROUTED2(FrameMsg_SelectPopupMenuItems,
                     bool /* user canceled the popup */,
                     std::vector<int> /* selected indices */)
 
 #elif defined(OS_MACOSX)
 
 // External popup menus.
@@ skipping 334 matching lines @@
 // the frame.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_BeforeUnloadHandlersPresent,
                     bool /* present */)
 IPC_MESSAGE_ROUTED1(FrameHostMsg_UnloadHandlersPresent,
                     bool /* present */)
 
 // Dispatch a load event for this frame in the iframe element of an
 // out-of-process parent frame.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DispatchLoad)
 
+// Sent to the browser from a frame proxy to post a message to the frame's
+// active renderer.
+IPC_MESSAGE_ROUTED1(FrameHostMsg_RouteMessageEvent,
+                    FrameMsg_PostMessage_Params)
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #endif