Refactor away most of ExtensionRendererInfo

chrome/renderer/mock_render_thread.h

Index: chrome/renderer/mock_render_thread.h
diff --git a/chrome/renderer/mock_render_thread.h b/chrome/renderer/mock_render_thread.h
index e127184f95f1fd7f4c19a63e36d7a5a420e820ab..551f77a7a89cb17f7933734bbb70f39d86587f80 100644
--- a/chrome/renderer/mock_render_thread.h
+++ b/chrome/renderer/mock_render_thread.h
@@ -8,6 +8,7 @@
 
 #include <string>
 
+#include "chrome/renderer/extensions/extension_renderer_info.h"
 #include "chrome/renderer/mock_printer.h"
 #include "chrome/renderer/render_thread.h"
 #include "ipc/ipc_test_sink.h"
@@ -30,6 +31,8 @@ class MockRenderThread : public RenderThreadBase {
   MockRenderThread();
   virtual ~MockRenderThread();
 
+  virtual const ExtensionRendererInfo* GetExtensions() const;
+
   // Provides access to the messages that have been received by this thread.
   IPC::TestSink& sink() { return sink_; }
 
@@ -139,6 +142,10 @@ class MockRenderThread : public RenderThreadBase {
   // A mock printer device used for printing tests.
   scoped_ptr<MockPrinter> printer_;
 
+  // Contains extensions currently loaded by browser. This is usually empty
+  // for MockRenderThread.
+  ExtensionRendererInfo extensions_;
+
   bool is_extension_process_;
 };