Delay default apps installation on Chrome OS for first time sign-in

chrome/browser/extensions/external_pref_loader.cc

Index: chrome/browser/extensions/external_pref_loader.cc
diff --git a/chrome/browser/extensions/external_pref_loader.cc b/chrome/browser/extensions/external_pref_loader.cc
index 9a32ac34426b0a623573cd45e60c32fe043eccbf..27228d09d8fcd155d39e494d204d7d90a378e757 100644
--- a/chrome/browser/extensions/external_pref_loader.cc
+++ b/chrome/browser/extensions/external_pref_loader.cc
@@ -25,6 +25,10 @@ namespace {
 base::FilePath::CharType kExternalExtensionJson[] =
     FILE_PATH_LITERAL("external_extensions.json");
 
+// Keep this delay greater or close to priority settings sync timeout (10 sec)

[Nikita (slow), 2014/10/23 14:22:47]

For the reference: kSyncTimeoutSeconds.

[asargent_no_longer_on_chrome, 2014/10/23 22:34:35]

optional: Is it worth putting this constant name into the actual comment? Or
maybe even making the kMsDelayPrefLoad value be computed as (kSyncTimeoutSeconds
+ 5000) or (kSyncTimeoutSeconds * 1.5) or something?

[Dmitry Polukhin, 2014/10/24 11:40:42]

Removed this constant.

+// on Chrome OS login.
+const int kMsDelayPrefLoad = 15 * 1000;
+
 std::set<base::FilePath> GetPrefsCandidateFilesFromFolder(
       const base::FilePath& external_extension_search_path) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
@@ -104,9 +108,16 @@ const base::FilePath ExternalPrefLoader::GetBaseCrxFilePath() {
 
 void ExternalPrefLoader::StartLoading() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
-      base::Bind(&ExternalPrefLoader::LoadOnFileThread, this));
+  if (options_ & DELAY_LOAD) {
+    BrowserThread::PostDelayedTask(
+        BrowserThread::FILE, FROM_HERE,
+        base::Bind(&ExternalPrefLoader::LoadOnFileThread, this),
+        base::TimeDelta::FromMillisecondsD(kMsDelayPrefLoad));
+  } else {
+    BrowserThread::PostTask(
+        BrowserThread::FILE, FROM_HERE,
+        base::Bind(&ExternalPrefLoader::LoadOnFileThread, this));
+  }
 }
 
 void ExternalPrefLoader::LoadOnFileThread() {