🏠 Add pull-handle to bottom toolbar

chrome/android/java/res/values/colors.xml

Index: chrome/android/java/res/values/colors.xml
diff --git a/chrome/android/java/res/values/colors.xml b/chrome/android/java/res/values/colors.xml
index 0e3ebd21af2ab5dd810a0cbd7cbbd5c15cd798d5..19dc27f91af0acfafd49e1b6300c3b7707ce32df 100644
--- a/chrome/android/java/res/values/colors.xml
+++ b/chrome/android/java/res/values/colors.xml
@@ -27,6 +27,8 @@
     <color name="google_grey_600">#757575</color>
     <color name="google_grey_700">#616161</color>
     <color name="toolbar_shadow_color">#1d000000</color>
+    <color name="toolbar_handle_color">#61000000</color>

[Theresa, 2017/03/13 23:08:42]

Are the pull handle greys close enough to one of the other shades of grey
already defined or do we really need new colors?

[mdjones, 2017/03/13 23:43:39]

google_grey_700 would work but it lacks the alpha component. I'll ping UX.

[Theresa, 2017/03/14 00:01:44]

Depending on what Chris says, maybe we can use an existing alpha + black e.g.
4D000000 is ~30%. If nothing existing is close enough, let's at least push for a
round alpha number that's more likely to be reused e.g. 40%

#80FFFFFF we use in a few other places (e.g. light_mode_tint.xml) and we'll need
it for selection mode too (just asked Chris), so I think we could define
something like semi_opaque_white and re-use the color.

[mdjones, 2017/03/14 16:25:28]

Added semi_opaque_white and switched to using google_grey_500 for normal tabs.

+    <color name="toolbar_handle_color_incognito">#80ffffff</color>
     <color name="toolbar_light_tint">#A3000000</color>
     <color name="light_grey">#ccc</color>