[Contextual Search] Add support for crushed sprites and animate the search provider icon

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

Index: chrome/android/java/res/values/dimens.xml
diff --git a/chrome/android/java/res/values/dimens.xml b/chrome/android/java/res/values/dimens.xml
index 521a415e80cb2d86a36fd2b5657e881ec136612f..3afe18921c677842b2597eccd915942f9e25b30b 100644
--- a/chrome/android/java/res/values/dimens.xml
+++ b/chrome/android/java/res/values/dimens.xml
@@ -77,6 +77,7 @@
     <dimen name="contextual_search_text_size">18sp</dimen>
     <dimen name="contextual_search_peek_promo_height">48dp</dimen>
     <dimen name="contextual_search_peek_promo_padding">12dp</dimen>
+    <dimen name="contextual_search_sprite_size">36dp</dimen>

[pedro (no code reviews), 2015/10/27 20:32:00]

Is this being used? I would prefer getting this dimension from the json file.

[Theresa, 2015/10/28 02:01:53]

Yes, it's being used to set the layer bounds and scale the sprite.

I think it belongs here - the display size is unique to contextual search, not
the search provider sprite itself. If the same animation is used somewhere else
at a smaller (or larger) dp, this dp value will change but the JSON should not.

Also, setting it here in the xml means that we can rely Android to automatically
translate the dp to a px value for us rather than manually converting the value
read from JSON.

 
     <!-- Password generation popup dimensions -->
     <dimen name="password_generation_divider_height">1dp</dimen>