Fix missing dependency in native_viewport_application_delegate.h
Fix missing dependency in native_viewport_application_delegate.h

Saw a build error in http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_gn_chromeos_rel/builds/38730/steps/compile/logs/stdio

Review URL: https://codereview.chromium.org/1131113007

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#330385}

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