Make toolbar color opaque in browser theme

Make toolbar color opaque in browser theme

In the bug, the ui assumes using lcd_text by default, but the theme has
transparent toolbar_color, rendering subpixel makes the text seem weird.
This CL forces the color to be opaque (alpha value = 0xff).

It worked before because the can_use_lcd_text property of status bubble
is set before we compute layer draw properties, and the property is
disabled all the time. But now we compute layer draw properties on
demand, the can_use_lcd_text property becomes true as the whole layer
tree is set to be able to use lcd text.

BUG=618278
Review-Url: https://codereview.chromium.org/2044223006
Cr-Commit-Position: refs/heads/master@{#403593}
(cherry picked from commit 32c538f0e6cd40ebd53f336f1f3fae7eb404070b)

Committed: https://chromium.googlesource.com/chromium/src/+/4ee6dcc8331fe45ae305c79bda5320a96a92f204

[sunxd, 2016-07-04 14:56:45]

Description was changed from

==========
Make toolbar color opaque in browser theme

In the bug, the ui assumes using lcd_text by default, but the theme has
transparent toolbar_color, rendering subpixel makes the text seem weird.
This CL forces the color to be opaque (alpha value = 0xff).

It worked before because the can_use_lcd_text property of status bubble
is set before we compute layer draw properties, and the property is
disabled all the time. But now we compute layer draw properties on
demand, the can_use_lcd_text property becomes true as the whole layer
tree is set to be able to use lcd text.

BUG=618278

Review-Url: https://codereview.chromium.org/2044223006
Cr-Commit-Position: refs/heads/master@{#403593}
(cherry picked from commit 32c538f0e6cd40ebd53f336f1f3fae7eb404070b)
==========

to

==========
Make toolbar color opaque in browser theme

In the bug, the ui assumes using lcd_text by default, but the theme has
transparent toolbar_color, rendering subpixel makes the text seem weird.
This CL forces the color to be opaque (alpha value = 0xff).

It worked before because the can_use_lcd_text property of status bubble
is set before we compute layer draw properties, and the property is
disabled all the time. But now we compute layer draw properties on
demand, the can_use_lcd_text property becomes true as the whole layer
tree is set to be able to use lcd text.

BUG=618278

Review-Url: https://codereview.chromium.org/2044223006
Cr-Commit-Position: refs/heads/master@{#403593}
(cherry picked from commit 32c538f0e6cd40ebd53f336f1f3fae7eb404070b)

Committed:
https://chromium.googlesource.com/chromium/src/+/4ee6dcc8331fe45ae305c79bda53...
==========

[sunxd, 2016-07-04 14:56:49]

Committed patchset #1 (id:1) manually as
4ee6dcc8331fe45ae305c79bda5320a96a92f204.