cc: Get rid of non-delegated rendering in most cc unit tests.

cc/test/fake_output_surface.cc

Index: cc/test/fake_output_surface.cc
diff --git a/cc/test/fake_output_surface.cc b/cc/test/fake_output_surface.cc
index c867d6b65d2ae3d5ee6cbf3f061a41fab9c33195..1fb7f23bf32cdc5783c6820406b4903f9c1b3749 100644
--- a/cc/test/fake_output_surface.cc
+++ b/cc/test/fake_output_surface.cc
@@ -23,14 +23,6 @@ FakeOutputSurface::FakeOutputSurface(
                         delegated_rendering) {}
 
 FakeOutputSurface::FakeOutputSurface(
-    std::unique_ptr<SoftwareOutputDevice> software_device,
-    bool delegated_rendering)
-    : FakeOutputSurface(nullptr,
-                        nullptr,
-                        std::move(software_device),
-                        delegated_rendering) {}
-
-FakeOutputSurface::FakeOutputSurface(
     scoped_refptr<ContextProvider> context_provider,
     scoped_refptr<ContextProvider> worker_context_provider,
     std::unique_ptr<SoftwareOutputDevice> software_device,
@@ -108,12 +100,6 @@ void FakeOutputSurface::DetachFromClient() {
   OutputSurface::DetachFromClient();
 }
 
-void FakeOutputSurface::SetTreeActivationCallback(
-    const base::Closure& callback) {
-  DCHECK(client_);
-  client_->SetTreeActivationCallback(callback);
-}
-
 bool FakeOutputSurface::HasExternalStencilTest() const {
   return has_external_stencil_test_;
 }