Convert //cc from scoped_ptr to std::unique_ptr.

cc/test/test_in_process_context_provider.h

Index: cc/test/test_in_process_context_provider.h
diff --git a/cc/test/test_in_process_context_provider.h b/cc/test/test_in_process_context_provider.h
index 33034201c8db8bcff8310057abb3d755b14386d5..3205cc25db8436a846fabdfadfc28d045a486fcd 100644
--- a/cc/test/test_in_process_context_provider.h
+++ b/cc/test/test_in_process_context_provider.h
@@ -21,8 +21,8 @@ class GLInProcessContext;
 
 namespace cc {
 
-scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext();
-scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext(
+std::unique_ptr<gpu::GLInProcessContext> CreateTestInProcessContext();
+std::unique_ptr<gpu::GLInProcessContext> CreateTestInProcessContext(
     TestGpuMemoryBufferManager* gpu_memory_buffer_manager,
     TestImageFactory* image_factory,
     gpu::GLInProcessContext* shared_context);
@@ -51,7 +51,7 @@ class TestInProcessContextProvider : public ContextProvider {
  private:
   TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
   TestImageFactory image_factory_;
-  scoped_ptr<gpu::GLInProcessContext> context_;
+  std::unique_ptr<gpu::GLInProcessContext> context_;
   skia::RefPtr<class GrContext> gr_context_;
   base::Lock context_lock_;
 };