ui: No more TestCompositor. Use NullDraw contexts in unit tests.

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 3f6695c3fd8d7569173f0a7dd721b7fa9de90b19..44f9a0138aae5946cc06ed5be3e3babcf856bb84 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
@@ -42,7 +42,7 @@
 #include "ui/base/ui_base_types.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/test/draw_waiter_for_test.h"
-#include "ui/compositor/test/test_context_factory.h"
+#include "ui/compositor/test/in_process_context_factory.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 
@@ -193,10 +193,9 @@ class RenderWidgetHostViewAuraTest : public testing::Test {
 
   void SetUpEnvironment() {
     ImageTransportFactory::InitializeForUnitTests(
-        scoped_ptr<ui::ContextFactory>(new ui::TestContextFactory));
+        scoped_ptr<ui::ContextFactory>(new ui::InProcessContextFactory));
     aura_test_helper_.reset(new aura::test::AuraTestHelper(&message_loop_));
-    bool allow_test_contexts = true;
-    aura_test_helper_->SetUp(allow_test_contexts);
+    aura_test_helper_->SetUp();
 
     browser_context_.reset(new TestBrowserContext);
     process_host_ = new MockRenderProcessHost(browser_context_.get());