Rename cc::ResourceProvider::ResourceId to cc::ResourceId and move it to its own file.

cc/test/render_pass_test_utils.h

Index: cc/test/render_pass_test_utils.h
diff --git a/cc/test/render_pass_test_utils.h b/cc/test/render_pass_test_utils.h
index 49ea1130125acfd3372d89eddb7a078ca022b4c5..b3536449a46a4b43fc030699160e789144656239 100644
--- a/cc/test/render_pass_test_utils.h
+++ b/cc/test/render_pass_test_utils.h
@@ -51,7 +51,7 @@ void AddRenderPassQuad(TestRenderPass* to_pass,
 // Adds a render pass quad with the given mask resource, filter, and transform.
 void AddRenderPassQuad(TestRenderPass* toPass,
                        TestRenderPass* contributing_pass,
-                       ResourceProvider::ResourceId mask_resource_id,
+                       ResourceId mask_resource_id,
                        const FilterOperations& filters,
                        gfx::Transform transform,
                        SkXfermode::Mode blend_mode);