cc: Don't leak the texture returned in CopyOutputRequest ever.

cc/output/output_surface_unittest.cc

Index: cc/output/output_surface_unittest.cc
diff --git a/cc/output/output_surface_unittest.cc b/cc/output/output_surface_unittest.cc
index 42cbc14eb85d97873bc77f2feff9dc851a4747b1..54fd3a1adc5cacf2dca5aea0ff9a3cb336ec4d7f 100644
--- a/cc/output/output_surface_unittest.cc
+++ b/cc/output/output_surface_unittest.cc
@@ -99,7 +99,7 @@ TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientFailure) {
       TestContextProvider::Create();
 
   // Lose the context so BindToClient fails.
-  context_provider->TestContext3d()->set_times_make_current_succeeds(0);
+  context_provider->UnboundTestContext3d()->set_times_make_current_succeeds(0);
 
   TestOutputSurface output_surface(context_provider);
   EXPECT_FALSE(output_surface.HasClient());
@@ -154,7 +154,9 @@ TEST_F(OutputSurfaceTestInitializeNewContext3d, Success) {
 
 TEST_F(OutputSurfaceTestInitializeNewContext3d, Context3dMakeCurrentFails) {
   BindOutputSurface();
-  context_provider_->TestContext3d()->set_times_make_current_succeeds(0);
+
+  context_provider_->UnboundTestContext3d()
+      ->set_times_make_current_succeeds(0);
   InitializeNewContextExpectFail();
 }