NoTransportImageTransportFactory is compiled into only test targets.

content/browser/compositor/image_transport_factory.cc

Index: content/browser/compositor/image_transport_factory.cc
diff --git a/content/browser/compositor/image_transport_factory.cc b/content/browser/compositor/image_transport_factory.cc
index 66d484f51eb51bfc39629fe3201d2c6aec0195b5..e1e8175ef62946efe6baeaaf31caa56d9abb4638 100644
--- a/content/browser/compositor/image_transport_factory.cc
+++ b/content/browser/compositor/image_transport_factory.cc
@@ -6,7 +6,6 @@
 
 #include "base/command_line.h"
 #include "content/browser/compositor/gpu_process_transport_factory.h"
-#include "content/browser/compositor/no_transport_image_transport_factory.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/compositor_switches.h"
 #include "ui/gl/gl_implementation.h"
@@ -33,7 +32,7 @@ void ImageTransportFactory::Initialize() {
 }
 
 void ImageTransportFactory::InitializeForUnitTests(
-    scoped_ptr<ui::ContextFactory> test_factory) {
+    ImageTransportFactory* factory) {
   DCHECK(!g_factory);
   DCHECK(!g_initialized_for_unit_tests);
   g_initialized_for_unit_tests = true;
@@ -42,7 +41,7 @@ void ImageTransportFactory::InitializeForUnitTests(
   if (command_line->HasSwitch(switches::kEnablePixelOutputInTests))
     g_disable_null_draw = new gfx::DisableNullDrawGLBindings;
 
-  SetFactory(new NoTransportImageTransportFactory(test_factory.Pass()));
+  SetFactory(factory);
 }
 
 // static