Add a gyp flag to allow removing dependency on ppapi.

chrome/renderer/chrome_content_renderer_client.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/renderer/chrome_content_renderer_client.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 283 matching lines @@
   // The password_autocomplete_manager takes the first shot at processing the
   // notification and can stop the propagation.
   page_click_tracker->AddListener(password_autofill_manager);
   page_click_tracker->AddListener(autofill_agent);
 
   TranslateHelper* translate = new TranslateHelper(render_view);
   new ChromeRenderViewObserver(
       render_view, content_settings, chrome_observer_.get(),
       extension_dispatcher_.get(), translate);
 
+#if defined(ENABLE_PPAPI)
   new PepperHelper(render_view);
+#endif
+
   // FaviconHelper will delete itself when render_view is destroyed.
   new FaviconHelper(render_view);
   // Used only for testing/automation.
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDomAutomationController)) {
     new AutomationRendererHelper(render_view);
   }
 }
 
 void ChromeContentRendererClient::SetNumberOfViews(int number_of_views) {
@@ skipping 699 matching lines @@
 bool ChromeContentRendererClient::IsAdblockPlusWithWebRequestInstalled() {
   return extension_dispatcher_->IsAdblockPlusWithWebRequestInstalled();
 }
 
 bool ChromeContentRendererClient::IsOtherExtensionWithWebRequestInstalled() {
   return extension_dispatcher_->IsOtherExtensionWithWebRequestInstalled();
 }
 
 void ChromeContentRendererClient::RegisterPPAPIInterfaceFactories(
     webkit::ppapi::PpapiInterfaceFactoryManager* factory_manager) {
+#if defined(ENABLE_PPAPI)
   factory_manager->RegisterFactory(ChromePPAPIInterfaceFactory);
+#endif
 }
 
 }  // namespace chrome