Extensions: run "custom bindings" v8-extensions in content scripts.

chrome/renderer/extensions/chrome_v8_context.h

Index: chrome/renderer/extensions/chrome_v8_context.h
diff --git a/chrome/renderer/extensions/chrome_v8_context.h b/chrome/renderer/extensions/chrome_v8_context.h
index 19165ab608d55b44b8b874c99ed46f185c2137c6..a5bddb87e4b3ffdff4b834b666c54732da12449a 100644
--- a/chrome/renderer/extensions/chrome_v8_context.h
+++ b/chrome/renderer/extensions/chrome_v8_context.h
@@ -28,7 +28,8 @@ class ChromeV8Context {
  public:
   ChromeV8Context(v8::Handle<v8::Context> context,
                   WebKit::WebFrame* frame,
-                  const std::string& extension_id);
+                  const std::string& extension_id,
+                  bool is_content_script);
   ~ChromeV8Context();
 
   v8::Handle<v8::Context> v8_context() const {
@@ -46,6 +47,10 @@ class ChromeV8Context {
     web_frame_ = NULL;
   }
 
+  bool is_content_script() const {
+    return is_content_script_;
+  }
+
   // Returns a special Chrome-specific hidden object that is associated with a
   // context, but not reachable from the JavaScript in that context. This is
   // used by our v8::Extension implementations as a way to share code and as a
@@ -96,6 +101,9 @@ class ChromeV8Context {
   // The extension ID this context is associated with.
   std::string extension_id_;
 
+  // Whether the context is for a content script.
+  bool is_content_script_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeV8Context);
 };