Make RenderPass::Id an isolated class

cc/trees/layer_tree_host_unittest_no_message_loop.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/threading/simple_thread.h"
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/layers/delegated_renderer_layer.h"
 #include "cc/layers/layer.h"
@@ skipping 185 matching lines @@
   virtual void UnusedResourcesAreAvailable() OVERRIDE {}
 
  private:
   scoped_ptr<DelegatedFrameData> CreateFrameDataWithResource(
       ResourceProvider::ResourceId resource_id) {
     scoped_ptr<DelegatedFrameData> frame(new DelegatedFrameData);
     gfx::Rect frame_rect(size_);
 
     scoped_ptr<RenderPass> root_pass(RenderPass::Create());
     root_pass->SetNew(
-        RenderPass::Id(1, 1), frame_rect, frame_rect, gfx::Transform());
+        RenderPassId(1, 1), frame_rect, frame_rect, gfx::Transform());
     frame->render_pass_list.push_back(root_pass.Pass());
 
     TransferableResource resource;
     resource.id = resource_id;
     resource.mailbox_holder.texture_target = GL_TEXTURE_2D;
     resource.mailbox_holder.mailbox = gpu::Mailbox::Generate();
     frame->resource_list.push_back(resource);
 
     return frame.Pass();
   }
 
   void CheckReturnedResource(size_t expected_num) {
     ReturnedResourceArray returned_resources;
     resource_collection_->TakeUnusedResourcesForChildCompositor(
         &returned_resources);
     EXPECT_EQ(expected_num, returned_resources.size());
   }
 
   scoped_refptr<DelegatedFrameResourceCollection> resource_collection_;
   scoped_refptr<DelegatedFrameProvider> frame_provider_;
   scoped_refptr<DelegatedRendererLayer> delegated_layer_;
 };
 
 TEST_F(LayerTreeHostNoMessageLoopDelegatedLayer, SingleDelegatedLayer) {
   RunTest();
 }
 
 }  // namespace
 }  // namespace cc