Make reftests work for sky.

sky/viewer/content_handler_impl.cc

Index: sky/viewer/content_handler_impl.cc
diff --git a/sky/viewer/content_handler_impl.cc b/sky/viewer/content_handler_impl.cc
index e4ceaec945b4bbcc16bae8aafb6d8e067e542337..6647692543a5074dd58f049050abf4afb34f1c6f 100644
--- a/sky/viewer/content_handler_impl.cc
+++ b/sky/viewer/content_handler_impl.cc
@@ -14,10 +14,12 @@ namespace sky {
 class SkyApplication : public mojo::Application {
  public:
   SkyApplication(mojo::ShellPtr shell,
-                 mojo::URLResponsePtr response)
+                 mojo::URLResponsePtr response,
+                 bool is_testing)
       : url_(response->url),
         shell_(shell.Pass()),
-        initial_response_(response.Pass()) {
+        initial_response_(response.Pass()),
+        is_testing_(is_testing) {
     shell_.set_client(this);
     mojo::ServiceProviderPtr service_provider;
     shell_->ConnectToApplication("mojo:network_service",
@@ -55,16 +57,19 @@ class SkyApplication : public mojo::Application {
   void OnResponseReceived(mojo::URLLoaderPtr loader,
                           mojo::ServiceProviderPtr provider,
                           mojo::URLResponsePtr response) {
-    new DocumentView(provider.Pass(), response.Pass(), shell_.get());
+    new DocumentView(provider.Pass(), response.Pass(), shell_.get(),
+        is_testing_);
   }
 
   mojo::String url_;
   mojo::ShellPtr shell_;
   mojo::NetworkServicePtr network_service_;
   mojo::URLResponsePtr initial_response_;
+  bool is_testing_;
 };
 
-ContentHandlerImpl::ContentHandlerImpl() {
+ContentHandlerImpl::ContentHandlerImpl(bool is_testing) {
+  is_testing_ = is_testing;
 }
 
 ContentHandlerImpl::~ContentHandlerImpl() {
@@ -72,7 +77,7 @@ ContentHandlerImpl::~ContentHandlerImpl() {
 
 void ContentHandlerImpl::StartApplication(mojo::ShellPtr shell,
                                           mojo::URLResponsePtr response) {
-  new SkyApplication(shell.Pass(), response.Pass());
+  new SkyApplication(shell.Pass(), response.Pass(), is_testing_);
 }
 
 }  // namespace sky