Make extension installation work when the "ask for destination
of every download" preference is set.

BUG=23011
TEST=Set the preference in question, install an extension. You should not get a save as dialog and it should install correctly.

Review URL: http://codereview.chromium.org/252005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27262 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/download/download_manager.cc b/chrome/browser/download/download_manager.cc
index a6b99372..b9925e7 100644
--- a/chrome/browser/download/download_manager.cc
+++ b/chrome/browser/download/download_manager.cc
@@ -566,8 +566,13 @@
   // Freeze the user's preference for showing a Save As dialog.  We're going to
   // bounce around a bunch of threads and we don't want to worry about race
   // conditions where the user changes this pref out from under us.
-  if (*prompt_for_download_)
-    info->save_as = true;
+  if (*prompt_for_download_) {
+    // But never obey the preference for extension installation. Note that we
+    // only care here about the case where an extension is installed, not when
+    // one is downloaded with "save as...".
+    if (!IsExtensionInstall(info))
+      info->save_as = true;
+  }
 
   // Determine the proper path for a download, by choosing either the default
   // download directory, or prompting the user.