GN: Use implicit dependency for binary input deps

This is to ensure that the input gets rebuilt when the depencies change
even when they are not included in the depfile generated by the
compiler.

BUG=612623

Review-Url: https://codereview.chromium.org/2071573003
Cr-Original-Commit-Position: refs/heads/master@{#400515}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 57ac2eae0f67ef9310e2fad40258b1d45ac82435
7 files changed
tree: 135c23b3d9f3a5a7a9642fe6d388d27337af2afb
  1. tools/