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

ui/keyboard/keyboard_controller_unittest.cc

Index: ui/keyboard/keyboard_controller_unittest.cc
diff --git a/ui/keyboard/keyboard_controller_unittest.cc b/ui/keyboard/keyboard_controller_unittest.cc
index 98e08957b22d3899c2db9a47e5740b27d08da4b9..b1014e7c47b77062cd960ef61d308cca23f82209 100644
--- a/ui/keyboard/keyboard_controller_unittest.cc
+++ b/ui/keyboard/keyboard_controller_unittest.cc
@@ -18,6 +18,7 @@
 #include "ui/base/ime/input_method_factory.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/compositor/layer_type.h"
+#include "ui/compositor/test/context_factories_for_test.h"
 #include "ui/gfx/rect.h"
 #include "ui/keyboard/keyboard_controller.h"
 #include "ui/keyboard/keyboard_controller_proxy.h"
@@ -197,9 +198,12 @@ class KeyboardControllerTest : public testing::Test {
   virtual ~KeyboardControllerTest() {}
 
   virtual void SetUp() OVERRIDE {
+    // The ContextFactory must exist before any Compositors are created.
+    bool enable_pixel_output = false;
+    ui::InitializeContextFactoryForTests(enable_pixel_output);
+
     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();
     ui::SetUpInputMethodFactoryForTesting();
     focus_controller_.reset(new TestFocusController(root_window()));
     proxy_ = new TestKeyboardControllerProxy();
@@ -210,6 +214,7 @@ class KeyboardControllerTest : public testing::Test {
     controller_.reset();
     focus_controller_.reset();
     aura_test_helper_->TearDown();
+    ui::TerminateContextFactoryForTests();
   }
 
   aura::Window* root_window() { return aura_test_helper_->root_window(); }