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

build/android/lint/suppressions.xml

Index: build/android/lint/suppressions.xml
diff --git a/build/android/lint/suppressions.xml b/build/android/lint/suppressions.xml
index 97d5373afcfa6ed2081c209fb6ba8f8e019f310d..04b05a7a697d7df8b1fba36208e3541c89c65c74 100644
--- a/build/android/lint/suppressions.xml
+++ b/build/android/lint/suppressions.xml
@@ -53,6 +53,14 @@ Still reading?
     <ignore path="ui/android/java/res/drawable-xxxhdpi"/>
     <ignore regexp=".*: data_reduction_illustration.png, reader_mode_bar_background.9.png, tabs_moved_htc.png, tabs_moved_nexus.png, tabs_moved_samsung.png$"/>
   </issue>
+  <issue id="IconDipSize">
+    <ignore path="chrome/android/java/res/drawable-mdpi"/>

[newt (away), 2015/09/25 01:21:27]

nooooooooo :'(  *tears*

We don't want to ignore all IconDipSize warnings-- just the ones related to
google_icon_sprite.png. The <ignore regexp="..."> line should be sufficient for
that purpose. So, why do you need all the <ignore path="..."> lines?

[Theresa, 2015/09/25 01:52:08]

I had assumed (based on nothing) it used both the path and regexp (which was
incorrect anyway). Fixed the regexp and removed the paths.

Is the new regexp specific enough? This is the warning message:

chrome/android/java/res/drawable-mdpi/google_icon_sprite.png The image
`google_icon_sprite.png` varies significantly in its density-independent (dip)
size across the various density versions:
drawable-xxhdpi/google_icon_sprite.png: 283x36 dp (849x108 px),
drawable-xxxhdpi/google_icon_sprite.png: 281x36 dp (1124x144 px),
drawable-xhdpi/google_icon_sprite.png: 90x102 dp (180x203 px),
drawable-hdpi/google_icon_sprite.png: 85x100 dp (128x150 px),
drawable-mdpi/google_icon_sprite.png: 77x94 dp (77x94 px): IconDipSize [warning]

+    <ignore path="chrome/android/java/res/drawable-hdpi"/>
+    <ignore path="chrome/android/java/res/drawable-xhdpi"/>
+    <ignore path="chrome/android/java/res/drawable-xxhdpi"/>
+    <ignore path="chrome/android/java/res/drawable-xxxhdpi"/>
+    <ignore regexp=".*: google_icon_sprite.png$"/>
+  </issue>
   <issue id="IconLocation">
     <!-- It is OK for content_shell_apk to have missing assets. -->
     <ignore path="content/shell/android/java/res/"/>