Improvements to fatal JavaScript extension errors: (1) include the extension

chrome/renderer/extensions/chrome_v8_context_set.cc

Index: chrome/renderer/extensions/chrome_v8_context_set.cc
diff --git a/chrome/renderer/extensions/chrome_v8_context_set.cc b/chrome/renderer/extensions/chrome_v8_context_set.cc
index fa7d34b05202711aaefa06a6a559c5e76e0086fa..b9eb58005d2ef83018abbd0ed6ae5eb19a4b7582 100644
--- a/chrome/renderer/extensions/chrome_v8_context_set.cc
+++ b/chrome/renderer/extensions/chrome_v8_context_set.cc
@@ -60,10 +60,13 @@ ChromeV8ContextSet::ContextSet ChromeV8ContextSet::GetAll() const {
 }
 
 ChromeV8Context* ChromeV8ContextSet::GetCurrent() const {
-  if (!v8::Context::InContext())
-    return NULL;
-  else
-    return GetByV8Context(v8::Context::GetCurrent());
+  return v8::Context::InContext() ?
+      GetByV8Context(v8::Context::GetCurrent()) : NULL;
+}
+
+ChromeV8Context* ChromeV8ContextSet::GetCalling() const {
+  v8::Local<v8::Context> calling = v8::Context::GetCalling();
+  return calling.IsEmpty() ? NULL : GetByV8Context(calling);
 }
 
 ChromeV8Context* ChromeV8ContextSet::GetByV8Context(