Split extension_base.* out of bindings_utils.*.

chrome/renderer/extensions/bindings_utils.h

Index: chrome/renderer/extensions/bindings_utils.h
diff --git a/chrome/renderer/extensions/bindings_utils.h b/chrome/renderer/extensions/bindings_utils.h
index c9b2422999de8407c26a0fc9a2c8059d8f5f39b0..c5d69df84920add5bb03a486e357ad5fd8541baa 100644
--- a/chrome/renderer/extensions/bindings_utils.h
+++ b/chrome/renderer/extensions/bindings_utils.h
@@ -8,15 +8,12 @@
 
 #include "base/memory/linked_ptr.h"
 #include "base/memory/singleton.h"
-#include "base/string_piece.h"
-#include "ui/base/resource/resource_bundle.h"
 #include "v8/include/v8.h"
 
 #include <list>
+#include <map>
 #include <string>
 
-class Extension;
-class ExtensionDispatcher;
 class RenderView;
 
 namespace WebKit {
@@ -25,59 +22,6 @@ class WebFrame;
 
 namespace bindings_utils {
 
-// This is a base class for chrome extension bindings.  Common features that
-// are shared by different modules go here.
-class ExtensionBase : public v8::Extension {
- public:
-  ExtensionBase(const char* name,
-                const char* source,
-                int dep_count,
-                const char** deps,
-                ExtensionDispatcher* extension_dispatcher)
-      : v8::Extension(name, source, dep_count, deps),
-        extension_dispatcher_(extension_dispatcher) {
-  }
-
-  // Derived classes should call this at the end of their implementation in
-  // order to expose common native functions, like GetChromeHidden, to the
-  // v8 extension.
-  virtual v8::Handle<v8::FunctionTemplate>
-      GetNativeFunction(v8::Handle<v8::String> name);
-
-  // TODO(jstritar): Used for testing http://crbug.com/91582. Remove when done.
-  ExtensionDispatcher* extension_dispatcher() { return extension_dispatcher_; }
-
- protected:
-  template<class T>
-  static T* GetFromArguments(const v8::Arguments& args) {
-    CHECK(!args.Data().IsEmpty());
-    T* result = static_cast<T*>(args.Data().As<v8::External>()->Value());
-    return result;
-  }
-
-  // Note: do not call this function before or during the chromeHidden.onLoad
-  // event dispatch. The URL might not have been committed yet and might not
-  // be an extension URL.
-  const ::Extension* GetExtensionForCurrentContext() const;
-
-  // Checks that the current context contains an extension that has permission
-  // to execute the specified function. If it does not, a v8 exception is thrown
-  // and the method returns false. Otherwise returns true.
-  bool CheckPermissionForCurrentContext(const std::string& function_name) const;
-
-  // Returns a hidden variable for use by the bindings that is unreachable
-  // by the page.
-  static v8::Handle<v8::Value> GetChromeHidden(const v8::Arguments& args);
-
-  ExtensionDispatcher* extension_dispatcher_;
-
- private:
-  // Helper to print from bindings javascript.
-  static v8::Handle<v8::Value> Print(const v8::Arguments& args);
-};
-
-const char* GetStringResource(int resource_id);
-
 // Contains information about a JavaScript context that is hosting extension
 // bindings.
 struct ContextInfo {
@@ -113,6 +57,10 @@ ContextList::iterator FindContext(v8::Handle<v8::Context> context);
 // Returns the ContextInfo for the current v8 context.
 ContextInfo* GetInfoForCurrentContext();
 
+// Returns the 'chromeHidden' object for the specified context.
+v8::Handle<v8::Object> GetChromeHiddenForContext(
+    v8::Handle<v8::Context> context);
+
 // Contains info relevant to a pending API request.
 struct PendingRequest {
  public :