[HTML Imports] Let script of imported document running.

Source/core/dom/DocumentInit.cpp

Index: Source/core/dom/DocumentInit.cpp
diff --git a/Source/core/dom/DocumentInit.cpp b/Source/core/dom/DocumentInit.cpp
index adf48c24b6932eab4b95cb7beeda5751a70223a3..6e6c584c90a3930b7758b6e627d8a2c7a7dc714e 100644
--- a/Source/core/dom/DocumentInit.cpp
+++ b/Source/core/dom/DocumentInit.cpp
@@ -33,24 +33,30 @@
 
 namespace WebCore {
 
+bool DocumentInit::hasSecurityContextSource() const
+{
+    return contextSourceFrame();
+}
+
 bool DocumentInit::shouldSetURL() const
 {
-    return (m_frame && m_frame->ownerElement()) || !m_url.isEmpty();
+    Frame* frame = contextSourceFrame();
+    return (frame && frame->ownerElement()) || !m_url.isEmpty();
 }
 
 bool DocumentInit::shouldTreatURLAsSrcdocDocument() const
 {
-    return m_frame->loader()->shouldTreatURLAsSrcdocDocument(m_url);
+    return contextSourceFrame()->loader()->shouldTreatURLAsSrcdocDocument(m_url);
 }
 
 SandboxFlags DocumentInit::sandboxFlags() const
 {
-    return m_frame->loader()->effectiveSandboxFlags();
+    return contextSourceFrame()->loader()->effectiveSandboxFlags();
 }
 
 Settings* DocumentInit::settings() const
 {
-    return m_frame->settings();
+    return contextSourceFrame()->settings();
 }
 
 Frame* DocumentInit::ownerFrame() const
@@ -61,5 +67,14 @@ Frame* DocumentInit::ownerFrame() const
     return ownerFrame;
 }
 
+inline Frame* DocumentInit::contextSourceFrame() const

[abarth-chromium, 2013/07/19 07:55:55]

Why not just sourceFrame() or just frame() ?  I don't understand what the words
"context" and "source" mean here.

+{
+    if (m_frame)
+        return m_frame;
+    if (m_import)
+        return m_import->frame();
+    return 0;
+}
+
 } // namespace WebCore