Allow drag-and-drop of zipped extensions on chrome://extensions

chrome/browser/ui/webui/extensions/install_extension_handler.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/extensions/install_extension_handler.h"
 
 #include "base/bind.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/crx_installer.h"
@@ skipping 81 matching lines @@
 
 void InstallExtensionHandler::HandleInstallMessage(
     const base::ListValue* args) {
   if (file_to_install_.empty()) {
     LOG(ERROR) << "No file captured to install.";
     return;
   }
 
   Profile* profile = Profile::FromBrowserContext(
       web_ui()->GetWebContents()->GetBrowserContext());
-  scoped_ptr<ExtensionInstallPrompt> prompt(
-      new ExtensionInstallPrompt(web_ui()->GetWebContents()));
-  scoped_refptr<CrxInstaller> crx_installer(CrxInstaller::Create(
-      ExtensionSystem::Get(profile)->extension_service(),
-      prompt.Pass()));
-  crx_installer->set_error_on_unsupported_requirements(true);
-  crx_installer->set_off_store_install_allow_reason(
-      CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
-  crx_installer->set_install_immediately(true);
 
   const bool kCaseSensitive = false;
 
-  if (EndsWith(file_display_name_,
-      base::ASCIIToUTF16(".user.js"),
-      kCaseSensitive)) {
-    crx_installer->InstallUserScript(
-        file_to_install_,
-        net::FilePathToFileURL(file_to_install_));
-  } else if (EndsWith(file_display_name_,
-                      base::ASCIIToUTF16(".crx"),
-                      kCaseSensitive)) {
-    crx_installer->InstallCrx(file_to_install_);
+  if (EndsWith(
+          file_display_name_, base::ASCIIToUTF16(".zip"), kCaseSensitive)) {
+    UnpackedInstaller::Create(
+        ExtensionSystem::Get(profile)->extension_service())
+        ->LoadFromZipFile(file_to_install_);
   } else {
-    CHECK(false);
+    scoped_ptr<ExtensionInstallPrompt> prompt(
+        new ExtensionInstallPrompt(web_ui()->GetWebContents()));
+    scoped_refptr<CrxInstaller> crx_installer(CrxInstaller::Create(
+        ExtensionSystem::Get(profile)->extension_service(), prompt.Pass()));
+    crx_installer->set_error_on_unsupported_requirements(true);
+    crx_installer->set_off_store_install_allow_reason(
+        CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
+    crx_installer->set_install_immediately(true);
+
+    if (EndsWith(file_display_name_,
+                 base::ASCIIToUTF16(".user.js"),
+                 kCaseSensitive)) {
+      crx_installer->InstallUserScript(
+          file_to_install_, net::FilePathToFileURL(file_to_install_));
+    } else if (EndsWith(file_display_name_,
+                        base::ASCIIToUTF16(".crx"),
+                        kCaseSensitive)) {
+      crx_installer->InstallCrx(file_to_install_);
+    } else {
+      CHECK(false);
+    }
   }
 
   file_to_install_.clear();
   file_display_name_.clear();
 }
 
 void InstallExtensionHandler::HandleInstallDirectoryMessage(
     const base::ListValue* args) {
   Profile* profile = Profile::FromBrowserContext(
       web_ui()->GetWebContents()->GetBrowserContext());
   UnpackedInstaller::Create(
       ExtensionSystem::Get(profile)->
           extension_service())->Load(file_to_install_);
 }
 
 }  // namespace extensions