Add support for interstitial pages on android.

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index 94ceaad27f53ceb49ee3179e560888a841a80ff3..facc18a8687f44dee40016b933e11713d66d5b46 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -238,8 +238,13 @@ void ContentViewCoreImpl::InitJNI(JNIEnv* env, jobject obj) {
 RenderWidgetHostViewAndroid*
     ContentViewCoreImpl::GetRenderWidgetHostViewAndroid() {
   RenderWidgetHostView* rwhv = NULL;
-  if (web_contents_)
+  if (web_contents_) {
     rwhv = web_contents_->GetRenderWidgetHostView();
+    if (web_contents_->ShowingInterstitialPage()) {
+      rwhv = web_contents_->GetInterstitialPage()->
+          GetRenderViewHost()->GetView();
+    }
+  }
   return static_cast<RenderWidgetHostViewAndroid*>(rwhv);
 }