| Index: chrome/browser/android/webapk/webapk.proto
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| diff --git a/chrome/browser/android/webapk/webapk.proto b/chrome/browser/android/webapk/webapk.proto
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| index b53e1a3253971c6ae75c0d5b8395c919420b36bc..27fc96b0842a89ebad031e709b97ba27c5b6126d 100644
|
| --- a/chrome/browser/android/webapk/webapk.proto
|
| +++ b/chrome/browser/android/webapk/webapk.proto
|
| @@ -16,7 +16,11 @@ message WebApkResponse {
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| // Version code of the WebAPK.
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| optional string version = 2;
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|
|
| - // URL to download WebAPK.
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| + // URL to download WebAPK. If the URL is empty, the client should not attempt
|
| + // to download or install anything. For example, this may be empty when the
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| + // client requests an update even though no content has changed. The WebAPK
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| + // server can then let the client know that it is up-to-date already and does
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| + // not need to spend bandwidth re-downloading a WebAPK it has.
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| optional string signed_download_url = 3;
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|
|
| // Unique id identifying session with WebAPK server.
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|
|