ui + mus: Split ContextFactory into ContextFactory(Client) and ContextFactoryPrivate

content/browser/context_factory.cc

Index: content/browser/context_factory.cc
diff --git a/content/browser/context_factory.cc b/content/browser/context_factory.cc
index b9dfacc0dec0e12bbe11b7cd1239d629578499fb..aacdf25fc281e85a6dc7b6d347e209c9432e8605 100644
--- a/content/browser/context_factory.cc
+++ b/content/browser/context_factory.cc
@@ -13,4 +13,9 @@ ui::ContextFactory* GetContextFactory() {
   return ImageTransportFactory::GetInstance()->GetContextFactory();
 }
 
+ui::ContextFactoryPrivate* GetContextFactoryPrivate() {
+  DCHECK(ImageTransportFactory::GetInstance());
+  return ImageTransportFactory::GetInstance()->GetContextFactoryPrivate();
+}
+
 }  // namespace content