Implement a JavaScript API for document scanning

chrome/common/extensions/docs/examples/api/document_scan/scan.css

Index: chrome/common/extensions/docs/examples/api/document_scan/scan.css
diff --git a/chrome/common/extensions/docs/examples/api/document_scan/scan.css b/chrome/common/extensions/docs/examples/api/document_scan/scan.css
new file mode 100644
index 0000000000000000000000000000000000000000..11fe930f35996f659040a7e48d25420a1629d09b
--- /dev/null
+++ b/chrome/common/extensions/docs/examples/api/document_scan/scan.css
@@ -0,0 +1,32 @@
+#waitAnimation {
+  position: absolute;
+  left: 0px;
+  top: 0px;
+  height:100%;
+  width:100%;
+  z-index:1000;
+  background-color:black;
+  opacity:0.6;
+}
+
+#waitSpinner {
+  position: absolute;
+  height:60px;
+  width:60px;
+  top: 50%;
+  left: 50%;
+  margin-left: -30px;
+  margin-top: -30px;
+  -webkit-animation: rotation .6s infinite linear;
+  animation: rotation .6s infinite linear;
+  border-left:6px solid rgba(180,174,239,.15);
+  border-right:6px solid rgba(180,174,239,.15);
+  border-bottom:6px solid rgba(180,174,239,.15);
+  border-top:6px solid rgba(180,174,239,.8);
+  border-radius:100%;
+}
+
+@-webkit-keyframes rotation {
+  from {-webkit-transform: rotate(0deg);}
+  to {-webkit-transform: rotate(359deg);}
+}