Revert "Load web contents after tab is created."

This reverts commit 4c55f398def3214369aefa9f2f2e8f5940d3799d.

BUG=432562
TBR=tedchoc@chromium.org,jbudorick@chromium.org,sky@chromium.org

Review URL: https://codereview.chromium.org/894003005

Cr-Commit-Position: refs/heads/master@{#314469}
void WebContentsAndroid::ShowImeIfNeeded(JNIEnv* env, jobject obj) {
  RenderViewHost* host = web_contents_->GetRenderViewHost();
  if (!host)
    return;
  host->Send(new ViewMsg_ShowImeIfNeeded(host->GetRoutingID()));
}

void WebContentsAndroid::ShowImeIfNeeded(JNIEnv* env, jobject obj) {
  RenderViewHost* host = web_contents_->GetRenderViewHost();
  if (!host)
    return;
  host->Send(new ViewMsg_ShowImeIfNeeded(host->GetRoutingID()));
}
