Add material design toggle ripple element.

ui/file_manager/file_manager_resources.grd

Index: ui/file_manager/file_manager_resources.grd
diff --git a/ui/file_manager/file_manager_resources.grd b/ui/file_manager/file_manager_resources.grd
index 63670a2995a54164097b49e3a4601c26ce0a07b6..ba0372ba29d6172adf419195b428defc8480472b 100644
--- a/ui/file_manager/file_manager_resources.grd
+++ b/ui/file_manager/file_manager_resources.grd
@@ -179,6 +179,8 @@
       <include name="IDR_GALLERY_BKGND_JS" file="gallery/js/background.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_GALLERY_TEST_UTIL_JS" file="gallery/js/test_util.js" flattenhtml="true" type="BINDATA" />
       <include name="IDR_GALLERY_METADATA_WORKER_JS" file="gallery/js/metadata_worker.js" flattenhtml="true" type="BINDATA" />
+      <include name="IDR_GALLERY_ELEMENTS_GALLERY_TOGGLE_BUTTON_HTML" file="gallery/elements/gallery_toggle_button.html" type="BINDATA" />

[fukino, 2015/06/10 08:28:52]

It'd be better if file_manager and gallery can share this element.

[yawano, 2015/06/10 08:55:19]

Yes, I agree with it. We are going to extract this to a shared module. Is it
okay to do it in a separate CL? i.e. lands as gallery_toggle_button first and
move it to a shared module with renaming it.

+      <include name="IDR_GALLERY_ELEMENTS_GALLERY_TOGGLE_BUTTON_JS" file="gallery/elements/gallery_toggle_button.js" type="BINDATA" />
 
       <!-- Custom cursors (which grit cannot inline). -->
       <include name="IDR_FILE_MANAGER_IMG_GALLERY_CURSOR_CROP" file="gallery/images/100/cursor_crop.png" type="BINDATA" />