Set the prerender size right and avoid resets

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index a19684296d47d212b74f11595977d049fb0e9f4a..5e67cd632a75a0bac6fbae38f2d1ff2406c46196 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -1696,7 +1696,11 @@ void RenderWidgetHostViewAndroid::SetContentViewCore(
     overscroll_controller_.reset();
     selection_controller_.reset();
     ReleaseLocksOnSurface();
-    resize = true;
+    bool new_content_view_core = content_view_core

[no sievers, 2016/07/13 21:59:40]

nit: i'd call this !|is_size_initialized| or something

Can you also put the TODO with the other bug id and say that CVC should have a
notion of the request size in some form instead?

[Yusuf, 2016/07/14 17:23:37]

Done.

+        && content_view_core->GetViewportSizeDip().width() == 0
+        && content_view_core->GetViewportSizeDip().height() == 0;
+    if (content_view_core_ || !new_content_view_core)
+      resize = true;
     if (content_view_core_) {
       content_view_core_->RemoveObserver(this);
       content_view_core_->GetViewAndroid()->RemoveChild(&view_);