Various UI fixes in Gallery

-New assets for grid and strip selection borders.
-Fix spacing in details dialog.
-New scrollbar asset in the strip view.
-Deleted unused ScrollView.java and GlDetailsView.java

bug:5327238
Change-Id: I147b8f8069f42e345110f7ae86c47d331551f089

parent 75ebc879

res/drawable-hdpi/grid_pressed.9.png

−85 B (138 B)

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res/drawable-hdpi/grid_selected.9.png

−84 B (138 B)

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res/drawable-hdpi/scrollbar_handle_holo_dark.9.png

deleted100644 → 0

−267 B

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res/drawable-hdpi/thumb_selected.9.png

0 → 100644

+139 B

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res/drawable-mdpi/grid_pressed.9.png

−71 B (134 B)

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