Split the views classes for infobars and their containers into two parts each, one for the views-specific bits and one for bits which can hopefully be cross-platform.

There should be no functional change here, but I had to think about some of the differences -- like the different logic in InfoBar::MaybeDelete() compared to the old InfoBarView::Close() -- for a long time to convince myself.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/6728002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@80036 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 4e726723..b9fe9cd 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2906,12 +2906,16 @@
         'browser/ui/views/infobars/confirm_infobar.h',
         'browser/ui/views/infobars/extension_infobar.cc',
         'browser/ui/views/infobars/extension_infobar.h',
+        'browser/ui/views/infobars/infobar.cc',
+        'browser/ui/views/infobars/infobar.h',
         'browser/ui/views/infobars/infobar_background.cc',
         'browser/ui/views/infobars/infobar_background.h',
         'browser/ui/views/infobars/infobar_button_border.cc',
         'browser/ui/views/infobars/infobar_button_border.h',
         'browser/ui/views/infobars/infobar_container.cc',
         'browser/ui/views/infobars/infobar_container.h',
+        'browser/ui/views/infobars/infobar_container_view.cc',
+        'browser/ui/views/infobars/infobar_container_view.h',
         'browser/ui/views/infobars/infobar_view.cc',
         'browser/ui/views/infobars/infobar_view.h',
         'browser/ui/views/infobars/link_infobar.cc',