Enable a minimal content/ build on iOS

content/test/test_content_browser_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 "content/test/test_content_browser_client.h"
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "content/test/test_web_contents_view.h"
 #include "googleurl/src/gurl.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/base/clipboard/clipboard.h"
 
 namespace content {
 
 TestContentBrowserClient::TestContentBrowserClient() {
 }
 
 TestContentBrowserClient::~TestContentBrowserClient() {
 }
 
 WebContentsView* TestContentBrowserClient::OverrideCreateWebContentsView(
     WebContents* web_contents,
     RenderViewHostDelegateView** render_view_host_delegate_view) {
+#if defined(OS_IOS)
+  return NULL;
+#else
   TestWebContentsView* rv = new TestWebContentsView;
   *render_view_host_delegate_view = rv;
   return rv;
+#endif
 }
 
 FilePath TestContentBrowserClient::GetDefaultDownloadDirectory() {
   if (!download_dir_.IsValid()) {
     bool result = download_dir_.CreateUniqueTempDir();
     CHECK(result);
   }
   return download_dir_.path();
 }
 
 }  // namespace content