Don't serialize extension user script injection results unless the extension

chrome/renderer/extensions/chrome_v8_context_set.h

Index: chrome/renderer/extensions/chrome_v8_context_set.h
diff --git a/chrome/renderer/extensions/chrome_v8_context_set.h b/chrome/renderer/extensions/chrome_v8_context_set.h
index f47a61fe74a555d34ee8f0148eae68dc34f7404e..f170d2a54474c7138e9bdbe214a3a7cec71d4df3 100644
--- a/chrome/renderer/extensions/chrome_v8_context_set.h
+++ b/chrome/renderer/extensions/chrome_v8_context_set.h
@@ -22,6 +22,10 @@ namespace content {
 class RenderView;
 }
 
+namespace WebKit {
+class WebFrame;
+}
+
 namespace v8 {
 class Context;
 }
@@ -63,6 +67,9 @@ class ChromeV8ContextSet {
   // v8::Context or NULL if no such context exists.
   ChromeV8Context* GetByV8Context(v8::Handle<v8::Context> context) const;
 
+  // Gets the ChromeV8Context corresponding to the given WebFrame.
+  ChromeV8Context* GetByWebFrame(WebKit::WebFrame* web_frame) const;

[not at google - send to devlin, 2013/08/23 01:19:13]

Ok this method doesn't make any sense. There are multiple contexts per frame.
Don't know what I was thinking. Will fix tomorrow.

+
   // Synchronously runs |callback| with each ChromeV8Context that belongs to
   // |extension_id| in |render_view|.
   //