SimpleCache: have tests run on all three streams

Many unit tests only run on the first stream. With the upcoming changes to
SimpleCache, each stream will have a different implementation. This CL ensures
test are ran on all streams.

BUG=173398

Review URL: https://codereview.chromium.org/23702024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243170 0039d316-1c4b-4281-b951-d872f2087c98
Stop copying chrome.pak to the product directory.

Installers should no longer pick it up already.

Also add a note to chrome_repack_chrome.gypi mentioning that it's on the way out.

BUG=52609
NOTRY=true

Review URL: https://codereview.chromium.org/102283006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243171 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243170
SVN changes up to revision 243171
Add Download.ShowDangerousDownloadConfirmationPrompt for Windows/CrOS

The Download.ShowDangerousDownloadConfirmationPrompt UMA stat tells us
how often people go through the last step of recovering a malicious
binary from chrome://downloads.

This UMA stat was added for GTK, but was missing for Win/CrOS. This CL
adds it to the Views (Win/CrOS) version of the dialog.

BUG=331603

Review URL: https://codereview.chromium.org/114003005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243172 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243172