Cross-process postMessage

content/renderer/render_view_impl.h

Index: content/renderer/render_view_impl.h
diff --git a/content/renderer/render_view_impl.h b/content/renderer/render_view_impl.h
index b4554cb458117816ef77ffa3d7e94b1bfd6af251..2f7bb397f53c1c608550c31244bb31fadb96dbae 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -41,6 +41,7 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPageSerializerClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPageVisibilityState.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebTextDirection.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNavigationType.h"
@@ -74,6 +75,8 @@ class RendererAccessibility;
 class SkBitmap;
 class SpeechInputDispatcher;
 struct ViewMsg_Navigate_Params;
+struct ViewMsg_PostMessage_Params;
+struct ViewMsg_SetOpenerProxy_Params;
 struct ViewMsg_StopFinding_Params;
 struct ViewMsg_SwapOut_Params;
 struct WebDropData;
@@ -110,6 +113,7 @@ class ResourceFetcher;
 namespace WebKit {
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
+class WebDOMMessageEvent;
 class WebDataSource;
 class WebDragData;
 class WebGeolocationClient;
@@ -538,6 +542,10 @@ class RenderViewImpl : public RenderWidget,
   virtual void dispatchIntent(WebKit::WebFrame* frame,
                               const WebKit::WebIntent& intent);
 
+  virtual bool interceptPostMessage(int64 source_frame_id,
+                                    WebKit::WebSecurityOrigin targetOrigin,
+                                    WebKit::WebDOMMessageEvent event);
+
   // WebKit::WebPageSerializerClient implementation ----------------------------
 
   virtual void didSerializeDataForFrame(
@@ -806,6 +814,7 @@ class RenderViewImpl : public RenderWidget,
 #if defined(OS_MACOSX)
   void OnPluginImeCompositionCompleted(const string16& text, int plugin_id);
 #endif
+  void OnPostMessage(int64 frame_id, const ViewMsg_PostMessage_Params& params);
   void OnRedo();
   void OnReloadFrame();
   void OnReplace(const string16& text);
@@ -829,6 +838,7 @@ class RenderViewImpl : public RenderWidget,
   void OnSetInLiveResize(bool in_live_resize);
 #endif
   void OnScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
+  void OnSetOpenerProxy(const ViewMsg_SetOpenerProxy_Params& params);
   void OnSetPageEncoding(const std::string& encoding_name);
   void OnSetRendererPrefs(const content::RendererPreferences& renderer_prefs);
 #if defined(OS_MACOSX)
@@ -911,6 +921,9 @@ class RenderViewImpl : public RenderWidget,
                                     WebKit::WebFrame* frame,
                                     WebKit::WebNavigationType type);
 
+  void InstallDOMProxy(WebKit::WebFrame *frame,
+                       int64 browsing_instance_frame_id);
+
   bool MaybeLoadAlternateErrorPage(WebKit::WebFrame* frame,
                                    const WebKit::WebURLError& error,
                                    bool replace);
@@ -1205,6 +1218,10 @@ class RenderViewImpl : public RenderWidget,
   // of handling a ViewMsg_SelectRange IPC.
   bool handling_select_range_;
 
+  // The browsing instance frame id of the frame we're a proxy for, or
+  // -1 if none.
+  int64 proxy_of_browsing_instance_frame_id_;

[Charlie Reis, 2011/12/12 22:20:36]

This seems a bit confusing to me, partly because of the hard-to-parse name. 
Maybe something like active_content_frame_id_?  (It's -1 if this renderer has
the active frame, correct?)

[supersat, 2011/12/15 19:30:49]

Done. Yes.

+
   // Plugins -------------------------------------------------------------------
 
   // All the currently active plugin delegates for this RenderView; kept so