Cross-process Message Port implementation.

I'm sending this first, then I'll add support to workers in another changelist to avoid making this change larger.

TEST=running message port related layout tests in ui_tests
Review URL: http://codereview.chromium.org/159372

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@22356 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 0 deletions

diff --git a/webkit/api/public/WebKitClient.h b/webkit/api/public/WebKitClient.h
index a63ae3d..026caf5 100644
--- a/webkit/api/public/WebKitClient.h
+++ b/webkit/api/public/WebKitClient.h
@@ -41,6 +41,7 @@
 namespace WebKit {
     class WebClipboard;
     class WebData;
+    class WebMessagePortChannel;
     class WebMimeRegistry;
     class WebPluginListBuilder;
     class WebSandboxSupport;
@@ -95,6 +96,13 @@ namespace WebKit {
         virtual bool isLinkVisited(unsigned long long linkHash) = 0;
 
 
+        // Message Ports -------------------------------------------------------
+
+        // Creates a Message Port Channel.  This can be called on any thread.
+        // The returned object should only be used on the thread it was created on.
+        virtual WebMessagePortChannel* createMessagePortChannel() = 0;
+
+
         // Network -------------------------------------------------------------
 
         virtual void setCookies(