Enable Blink to pass extra Mojo handles across MessagePorts

third_party/WebKit/public/platform/WebMessagePortChannel.h

Index: third_party/WebKit/public/platform/WebMessagePortChannel.h
diff --git a/third_party/WebKit/public/platform/WebMessagePortChannel.h b/third_party/WebKit/public/platform/WebMessagePortChannel.h
index 857155329e1651580016fffe2c1d6247d3a79412..b1617ec35d7c02d53ee1c731d8572aab3c9ac908 100644
--- a/third_party/WebKit/public/platform/WebMessagePortChannel.h
+++ b/third_party/WebKit/public/platform/WebMessagePortChannel.h
@@ -31,9 +31,11 @@
 #ifndef WebMessagePortChannel_h
 #define WebMessagePortChannel_h
 
+#include <memory>
+
 #include "WebCommon.h"
 #include "WebVector.h"
-#include <memory>
+#include "mojo/public/cpp/system/handle.h"
 
 namespace blink {
 
@@ -51,8 +53,12 @@ class WebMessagePortChannel {
   virtual void setClient(WebMessagePortChannelClient*) = 0;
   // Callee receives ownership of the passed vector.
   // FIXME: Blob refs should be passed to maintain ref counts. crbug.com/351753
-  virtual void postMessage(const WebString&, WebMessagePortChannelArray) = 0;
-  virtual bool tryGetMessage(WebString*, WebMessagePortChannelArray&) = 0;
+  virtual void postMessage(const WebString&,
+                           WebMessagePortChannelArray,
+                           WebVector<mojo::ScopedHandle>) = 0;
+  virtual bool tryGetMessage(WebString*,
+                             WebMessagePortChannelArray&,
+                             WebVector<mojo::ScopedHandle>&) = 0;
 };
 
 }  // namespace blink