Remove all the ephemeral apps code.

chrome/browser/extensions/extension_browsertest.h

Index: chrome/browser/extensions/extension_browsertest.h
diff --git a/chrome/browser/extensions/extension_browsertest.h b/chrome/browser/extensions/extension_browsertest.h
index 65d1d92ec92b81dab8bf1afc232ed7e7893563af..328a915ab6789a28b59fe6b2ce0f2e95eaedfcee 100644
--- a/chrome/browser/extensions/extension_browsertest.h
+++ b/chrome/browser/extensions/extension_browsertest.h
@@ -201,26 +201,9 @@ class ExtensionBrowserTest : virtual public InProcessBrowserTest {
                                     install_source,
                                     browser(),
                                     creation_flags,
-                                    false,
                                     false);
   }
 
-  const extensions::Extension* InstallEphemeralAppWithSourceAndFlags(
-      const base::FilePath& path,
-      int expected_change,
-      extensions::Manifest::Location install_source,
-      extensions::Extension::InitFromValueFlags creation_flags) {
-    return InstallOrUpdateExtension(std::string(),
-                                    path,
-                                    INSTALL_UI_TYPE_NONE,
-                                    expected_change,
-                                    install_source,
-                                    browser(),
-                                    creation_flags,
-                                    false,
-                                    true);
-  }
-
   // Begins install process but simulates a user cancel.
   const extensions::Extension* StartInstallButCancel(
       const base::FilePath& path) {
@@ -375,8 +358,7 @@ class ExtensionBrowserTest : virtual public InProcessBrowserTest {
       extensions::Manifest::Location install_source,
       Browser* browser,
       extensions::Extension::InitFromValueFlags creation_flags,
-      bool wait_for_idle,
-      bool is_ephemeral);
+      bool wait_for_idle);
 
   // Make the current channel "dev" for the duration of the test.
   extensions::ScopedCurrentChannel current_channel_;