When doing html inlining, preserve any attributes on script tags.
When doing html inlining, preserve any attributes on script tags.

Of course the src attribute needs to be removed when inlining, but there are
other valid attributes that shouldn't be touched.

No existing tests for html_inline, so no new test added.

R=joi@chromium.org
Review URL: http://codereview.chromium.org/9380008/
BUG=http://code.google.com/p/grit-i18n/issues/detail?id=3


git-svn-id: 50c90c531a9fd8f38831f054b7ea6b96f50d91dc@16 7262f16d-afe8-6277-6482-052fa10e57b1

Omegaphora/external_chromium_org_tools_grit,AOSPU/external_chromium_org_tools_grit,android-ia/platform_external_chromium_org_tools_grit,MIPS/external-chromium_org-tools-grit,Omegaphora/external_chromium_org_tools_grit,yinquan529/platform-external-chromium_org-tools-grit,yinquan529/platform-external-chromium_org-tools-grit,android-ia/platform_external_chromium_org_tools_grit,IllusionRom-deprecated/android_platform_external_chromium_org_tools_grit,xin3liang/platform_external_chromium_org_tools_grit,geekboxzone/lollipop_external_chromium_org_tools_grit,geekboxzone/lollipop_external_chromium_org_tools_grit,bpsinc-native/src_tools_grit,bpsinc-native/src_tools_grit