cc: Delete the RendererClient class.

cc/output/software_renderer_unittest.cc

Index: cc/output/software_renderer_unittest.cc
diff --git a/cc/output/software_renderer_unittest.cc b/cc/output/software_renderer_unittest.cc
index 9896a3e932cfe69526e39a6614d927e068851b01..fab6b3cb25355c9efca5784a62d20225a9b3ac82 100644
--- a/cc/output/software_renderer_unittest.cc
+++ b/cc/output/software_renderer_unittest.cc
@@ -31,7 +31,7 @@
 namespace cc {
 namespace {
 
-class SoftwareRendererTest : public testing::Test, public RendererClient {
+class SoftwareRendererTest : public testing::Test {
  public:
   void InitializeRenderer(
       std::unique_ptr<SoftwareOutputDevice> software_output_device) {
@@ -43,7 +43,7 @@ class SoftwareRendererTest : public testing::Test, public RendererClient {
     resource_provider_ = FakeResourceProvider::Create(
         output_surface_.get(), shared_bitmap_manager_.get());
     renderer_ = base::MakeUnique<SoftwareRenderer>(
-        this, &settings_, output_surface_.get(), resource_provider());
+        &settings_, output_surface_.get(), resource_provider());
     renderer_->SetVisible(true);
   }
 
@@ -53,9 +53,6 @@ class SoftwareRendererTest : public testing::Test, public RendererClient {
 
   SoftwareRenderer* renderer() const { return renderer_.get(); }
 
-  // RendererClient implementation.
-  void SetFullRootLayerDamage() override {}
-
   std::unique_ptr<SkBitmap> DrawAndCopyOutput(RenderPassList* list,
                                               float device_scale_factor,
                                               gfx::Rect device_viewport_rect) {