Move test-only ContextFactory implementations out of production targets

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

Index: content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
index d96f25f9a4b3c5205f50e263c888b09fdfa7306a..7ed732d8b60c13ddc8d13bd5ad99504feeb277ad 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
@@ -37,6 +37,7 @@
 #include "ui/aura/window_observer.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/compositor/compositor.h"
+#include "ui/compositor/test/test_context_factory.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 
@@ -123,7 +124,8 @@ class RenderWidgetHostViewAuraTest : public testing::Test {
       : browser_thread_for_ui_(BrowserThread::UI, &message_loop_) {}
 
   virtual void SetUp() {
-    ImageTransportFactory::InitializeForUnitTests();
+    ImageTransportFactory::InitializeForUnitTests(
+        scoped_ptr<ui::ContextFactory>(new ui::TestContextFactory));
     aura_test_helper_.reset(new aura::test::AuraTestHelper(&message_loop_));
     aura_test_helper_->SetUp();