Force sizing of a new tab as soon as TabContents is created....

chrome/browser/browser.cc

Index: chrome/browser/browser.cc
===================================================================
--- chrome/browser/browser.cc	(revision 21711)
+++ chrome/browser/browser.cc	(working copy)
@@ -1464,6 +1464,17 @@
   TabContents* contents = new TabContents(profile, instance,
                                           MSG_ROUTING_NONE, NULL);
 
+  // Ensure that the new TabContentsView begins at the same size as the
+  // previous TabContentsView if it existed.  Otherwise, the initial WebKit
+  // layout will be performed based on a width of 0 pixels, causing a
+  // very long, narrow, inaccurate layout.  Because some scripts on pages (as
+  // well as WebKit's anchor link location calculation) are run on the initial
+  // layout and not recalculated later, we need to ensure the first layout is
+  // performed with sane view dimensions even when we're opening a new
+  // background tab.
+  if (TabContents* old_contents = tabstrip_model_.GetSelectedTabContents())
+    contents->view()->SizeContents(old_contents->view()->GetContainerSize());
+
   if (!defer_load) {
     // Load the initial URL before adding the new tab contents to the tab strip
     // so that the tab contents has navigation state.