Add window access checks for Suborigins

Source/platform/weborigin/SecurityOrigin.cpp

Index: Source/platform/weborigin/SecurityOrigin.cpp
diff --git a/Source/platform/weborigin/SecurityOrigin.cpp b/Source/platform/weborigin/SecurityOrigin.cpp
index ef2b1b3d4ad2840f1df1bbe6131b2cabb943031b..38614c4c90aa3a4a7dd7510401c56d1aa9a2b7bd 100644
--- a/Source/platform/weborigin/SecurityOrigin.cpp
+++ b/Source/platform/weborigin/SecurityOrigin.cpp
@@ -286,6 +286,17 @@ bool SecurityOrigin::canAccess(const SecurityOrigin* other) const
     return canAccess;
 }
 
+bool SecurityOrigin::canAccessCheckSuborigins(const SecurityOrigin* other) const
+{
+    if (hasSuborigin() != other->hasSuborigin())
+        return false;
+
+    if (hasSuborigin() && suboriginName() != other->suboriginName())
+        return false;
+
+    return canAccess(other);
+}
+
 bool SecurityOrigin::passesFileCheck(const SecurityOrigin* other) const
 {
     ASSERT(isLocal() && other->isLocal());
@@ -320,6 +331,11 @@ bool SecurityOrigin::canRequest(const KURL& url) const
     return false;
 }
 
+bool SecurityOrigin::canRequestNoSuborigin(const KURL& url) const
+{
+    return !hasSuborigin() && canRequest(url);
+}
+
 bool SecurityOrigin::taintsCanvas(const KURL& url) const
 {
     if (canRequest(url))
@@ -560,6 +576,11 @@ bool SecurityOrigin::isSameSchemeHostPort(const SecurityOrigin* other) const
     return true;
 }
 
+bool SecurityOrigin::isSameSchemeHostPortAndSuborigin(const SecurityOrigin* other) const
+{
+    return isSameSchemeHostPort(other) && (!hasSuborigin() || suboriginName() == other->suboriginName());
+}
+
 const KURL& SecurityOrigin::urlWithUniqueSecurityOrigin()
 {
     ASSERT(isMainThread());