Add a new webstorePrivate API to show a permission prompt for delegated installs

chrome/browser/extensions/extension_install_prompt.h

Index: chrome/browser/extensions/extension_install_prompt.h
diff --git a/chrome/browser/extensions/extension_install_prompt.h b/chrome/browser/extensions/extension_install_prompt.h
index 39cd574362e9cab2c1b1e0b051444b9a5bc1e010..c5b72577bdf4bd54dd7706adf0ad761c98fb170f 100644
--- a/chrome/browser/extensions/extension_install_prompt.h
+++ b/chrome/browser/extensions/extension_install_prompt.h
@@ -75,6 +75,7 @@ class ExtensionInstallPrompt
     LAUNCH_PROMPT,
     REMOTE_INSTALL_PROMPT,
     REPAIR_PROMPT,
+    DELEGATED_PERMISSIONS_PROMPT,
     NUM_PROMPT_TYPES
   };
 
@@ -122,7 +123,6 @@ class ExtensionInstallPrompt
                          bool show_user_count,
                          double average_rating,
                          int rating_count);
-    void SetUserNameFromProfile(Profile* profile);
 
     PromptType type() const { return type_; }
     void set_type(PromptType type) { type_ = type; }
@@ -188,6 +188,13 @@ class ExtensionInstallPrompt
       retained_device_messages_ = retained_device_messages;
     }
 
+    const std::string& delegated_username() const {
+      return delegated_username_;
+    }
+    void set_delegated_username(const std::string& delegated_username) {
+      delegated_username_ = delegated_username;
+    }
+
     const gfx::Image& icon() const { return icon_; }
     void set_icon(const gfx::Image& icon) { icon_ = icon; }
 
@@ -240,6 +247,8 @@ class ExtensionInstallPrompt
     const extensions::Extension* extension_;
     const extensions::BundleInstaller* bundle_;
 
+    std::string delegated_username_;
+
     // The icon to be displayed.
     gfx::Image icon_;
 
@@ -353,6 +362,16 @@ class ExtensionInstallPrompt
                               const extensions::Extension* extension,
                               const ShowDialogCallback& show_dialog_callback);
 
+  // This is called by the webstore API to verify the permissions for a
+  // delegated install.
+  //
+  // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
+  virtual void ConfirmPermissionsForDelegatedInstall(
+      Delegate* delegate,
+      const extensions::Extension* extension,
+      const std::string& delegated_username,
+      const SkBitmap* icon);
+
   // This is called by the app handler launcher to verify whether the app
   // should be re-enabled. This is declared virtual for testing.
   //
@@ -438,6 +457,10 @@ class ExtensionInstallPrompt
   // The bundle we are showing the UI for, if type BUNDLE_INSTALL_PROMPT.
   const extensions::BundleInstaller* bundle_;
 
+  // The name of the user we are asking about, if type
+  // DELEGATED_PERMISSIONS_PROMPT.
+  std::string delegated_username_;
+
   // A custom set of permissions to show in the install prompt instead of the
   // extension's active permissions.
   scoped_refptr<const extensions::PermissionSet> custom_permissions_;