Fix sizing issues in the tab modal signin flow.

chrome/browser/resources/sync_confirmation/sync_confirmation.css

Index: chrome/browser/resources/sync_confirmation/sync_confirmation.css
diff --git a/chrome/browser/resources/sync_confirmation/sync_confirmation.css b/chrome/browser/resources/sync_confirmation/sync_confirmation.css
index 912f717e2dff3c4f302fb48c9ec92d5f5422b331..86cbff5f81150a49b354baa1b7660b208a383526 100644
--- a/chrome/browser/resources/sync_confirmation/sync_confirmation.css
+++ b/chrome/browser/resources/sync_confirmation/sync_confirmation.css
@@ -36,6 +36,7 @@ a {
 }
 
 .details {
+  font-size: 13px;

[Dan Beam, 2016/03/17 22:37:26]

how does this differ from the effective font-size set by text_defaults_md.css
(81.25% of 16px is 13px)[1][2]?

[1]
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/res...
[2]
https://code.google.com/p/chromium/codesearch#chromium/src/ui/webui/resources...

[anthonyvd, 2016/03/18 18:01:48]

This way, the font size doesn't change when Content Font Size is changed in
chrome://settings, which is what we want since this isn't "content".

[Dan Beam, 2016/03/18 18:10:08]

a) I'm not sure I agree with "this isn't content"
b) most people's eyes work poorly anywhere on the screen

   height: 250px;
   padding: 20px 24px;
 }