Enable a minimal content/ build on iOS

content/test/test_content_browser_client.cc

Index: content/test/test_content_browser_client.cc
diff --git a/content/test/test_content_browser_client.cc b/content/test/test_content_browser_client.cc
index e06bff3ae78d84b0eee44eafc08206e2f27f75f7..de7be0636351ec68e11a94973f5e11083e7d7e31 100644
--- a/content/test/test_content_browser_client.cc
+++ b/content/test/test_content_browser_client.cc
@@ -10,8 +10,6 @@
 #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 {
 
@@ -24,9 +22,13 @@ 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() {