Free worker context resources on idle.

cc/test/test_context_support.h

Index: cc/test/test_context_support.h
diff --git a/cc/test/test_context_support.h b/cc/test/test_context_support.h
index bdc7620d406e94b7ddfa79119e8c2809fed16b25..247ecfc0be0c62a0d0f0c57ffc791dfa3ca12295 100644
--- a/cc/test/test_context_support.h
+++ b/cc/test/test_context_support.h
@@ -31,6 +31,7 @@ class TestContextSupport : public gpu::ContextSupport {
                        const base::Closure& callback) override;
   void SignalQuery(uint32_t query, const base::Closure& callback) override;
   void SetAggressivelyFreeResources(bool aggressively_free_resources) override;
+  void TrimResources() override;
   void Swap() override;
   void PartialSwapBuffers(const gfx::Rect& sub_buffer) override;
   void CommitOverlayPlanes() override;
@@ -47,6 +48,12 @@ class TestContextSupport : public gpu::ContextSupport {
       std::unique_ptr<ScopedVisibility> visibility) override;
   bool AnyClientsVisible() const override;
 
+  std::unique_ptr<ScopedBusy> ClientBecameBusy() override;
+  void ClientBecameNotBusy(std::unique_ptr<ScopedBusy> busy) override;
+  void SetIdleCallback(const base::Closure& callback,
+                       scoped_refptr<base::SingleThreadTaskRunner>
+                           callback_task_runner) override;
+
   void CallAllSyncPointCallbacks();
 
   typedef base::Callback<void(int plane_z_order,