Relanding 48042...

chrome/browser/browser.cc

Index: chrome/browser/browser.cc
===================================================================
--- chrome/browser/browser.cc	(revision 48045)
+++ chrome/browser/browser.cc	(working copy)
@@ -1052,15 +1052,11 @@
 bool Browser::OpenAppsPanelAsNewTab() {
 #if defined(OS_CHROMEOS) || defined(OS_WIN)
   CommandLine* command_line = CommandLine::ForCurrentProcess();
-  if (command_line->HasSwitch(switches::kDisableAppsPanel) ||
-      (!browser_defaults::kShowAppsPanelForNewTab &&
-           !command_line->HasSwitch(switches::kAppsPanel))) {
-    return false;
+  if (command_line->HasSwitch(switches::kAppsPanel)) {
+    AppLauncher::ShowForNewTab(this, std::string());
+    return true;
   }
-  AppLauncher::ShowForNewTab(this, std::string());
-  return true;
-#endif  // OS_CHROMEOS || OS_WIN
-
+#endif
   return false;
 }
 
@@ -2082,21 +2078,6 @@
 // Browser, TabStripModelDelegate implementation:
 
 TabContents* Browser::AddBlankTab(bool foreground) {
-  // To make a more "launchy" experience, try to reuse an existing NTP if there
-  // is one.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableApps)) {
-    for (int i = tabstrip_model_.count() - 1; i >= 0; --i) {
-      TabContents* contents = tabstrip_model_.GetTabContentsAt(i);
-      if (StartsWithASCII(contents->GetURL().spec(),
-                          chrome::kChromeUINewTabURL, true)) {
-        if (foreground)
-          SelectTabContentsAt(i, true);
-
-        return contents;
-      }
-    }
-  }
-
   return AddBlankTabAt(-1, foreground);
 }