Do not show the install prompt for themes.

chrome/browser/extensions/extension_webstore_private_api.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/extensions/extension_webstore_private_api.h"
 
 #include <string>
 
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 232 matching lines @@
   Release();  // Balanced in RunImpl().
 }
 
 void InstallBundleFunction::OnBundleInstallCompleted() {
   SendResponse(true);
 
   Release();  // Balanced in RunImpl().
 }
 
 BeginInstallWithManifestFunction::BeginInstallWithManifestFunction()
-  : use_app_installed_bubble_(false) {}
+    : use_app_installed_bubble_(false) {}
 
 BeginInstallWithManifestFunction::~BeginInstallWithManifestFunction() {}
 
 bool BeginInstallWithManifestFunction::RunImpl() {
   DictionaryValue* details = NULL;
   EXTENSION_FUNCTION_VALIDATE(args_->GetDictionary(0, &details));
   CHECK(details);
 
   EXTENSION_FUNCTION_VALIDATE(details->GetString(kIdKey, &id_));
   if (!Extension::IdIsValid(id_)) {
@@ skipping 86 matching lines @@
 
 void BeginInstallWithManifestFunction::OnWebstoreParseSuccess(
     const std::string& id,
     const SkBitmap& icon,
     DictionaryValue* parsed_manifest) {
   CHECK_EQ(id_, id);
   CHECK(parsed_manifest);
   icon_ = icon;
   parsed_manifest_.reset(parsed_manifest);
 
-  ExtensionInstallUI::Prompt prompt(ExtensionInstallUI::INSTALL_PROMPT);
+  std::string error;
+  dummy_extension_ = ExtensionInstallUI::LocalizeExtensionForDisplay(
+      parsed_manifest_.get(), id, localized_name_, "", &error);
 
-  if (!ShowExtensionInstallDialogForManifest(
-      profile(),
-      this,
-      parsed_manifest,
-      id_,
-      localized_name_,
-      "", // no localized description
-      &icon_,
-      prompt,
-      &dummy_extension_)) {
+  if (!dummy_extension_) {
     OnWebstoreParseFailure(id_, WebstoreInstallHelper::Delegate::MANIFEST_ERROR,
                            kInvalidManifestError);
     return;
   }
 
+  install_ui_.reset(new ExtensionInstallUI(profile()));
+  install_ui_->ConfirmWebstoreInstall(this, dummy_extension_, &icon_);
   // Control flow finishes up in InstallUIProceed or InstallUIAbort.
 }
 
 void BeginInstallWithManifestFunction::OnWebstoreParseFailure(
     const std::string& id,
     WebstoreInstallHelper::Delegate::InstallHelperResultCode result_code,
     const std::string& error_message) {
   CHECK_EQ(id_, id);
 
   // Map from WebstoreInstallHelper's result codes to ours.
@@ skipping 253 matching lines @@
     SendResponse(true);
   } else {
     // Matched with a Release in OnGpuInfoUpdate.
     AddRef();
 
     manager->AddObserver(this);
     manager->RequestCompleteGpuInfoIfNeeded();
   }
   return true;
 }