Removed clipped bottom padding from chrome://flags and chrome://plugins headers.

This padding isn't shown; however it causes the headings to jump up when a find is
executed which matches anything in the headers. The referenced chrome bug contains
details on reproducing the problem; the webkit fix is non-trivial and possibly
controversial.

BUG=83292
TEST=Checked pages look the same


Review URL: http://codereview.chromium.org/8555030

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110938 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/flags.css

@@ -32,7 +32,7 @@ div#header {
   background: url('../../app/theme/flags_section.png') 0px 20px no-repeat;
   display: inline;
   margin: 0;
-  padding-bottom: 43px;
+  padding-bottom: 20px;
   -webkit-padding-start: 75px;
   padding-top: 40px;
 }

chrome/browser/resources/plugins.css

@@ -30,7 +30,7 @@ div#header {
   background: url('../../app/theme/extensions_section.png') 0px 20px no-repeat;
   display: inline;
   margin: 0;
-  padding-bottom: 43px;
+  padding-bottom: 20px;
   padding-left: 75px;
   padding-top: 40px;
 }
@@ -251,4 +251,4 @@ body.showTmiMode .showInTmiMode {
 
 button {
   font-size: 104%;
-}
+}
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