Revert of Media Galleries Partial Deprecation: Remove image metadata & libexif.

chrome/test/data/extensions/api_test/media_galleries/media_metadata/test.js

Index: chrome/test/data/extensions/api_test/media_galleries/media_metadata/test.js
diff --git a/chrome/test/data/extensions/api_test/media_galleries/media_metadata/test.js b/chrome/test/data/extensions/api_test/media_galleries/media_metadata/test.js
index 96ad3610bf76df5b61c7bf6f0eb9204540a091f9..f4010e0875ccd6cdbec15ce4d7e7705b04f69351 100644
--- a/chrome/test/data/extensions/api_test/media_galleries/media_metadata/test.js
+++ b/chrome/test/data/extensions/api_test/media_galleries/media_metadata/test.js
@@ -35,6 +35,30 @@ function ImageMIMETypeOnlyTest() {
   RunMetadataTest("test.jpg", {metadataType: 'mimeTypeOnly'}, verifyMetadata);
 }
 
+function ImageTagsTest() {
+  function verifyMetadata(metadata) {
+    chrome.test.assertEq("image/jpeg", metadata.mimeType);
+    chrome.test.assertEq(5616, metadata.width);
+    chrome.test.assertEq(3744, metadata.height);
+    chrome.test.assertEq(0, metadata.rotation);
+    chrome.test.assertEq(300.0, metadata.xResolution);
+    chrome.test.assertEq(300.0, metadata.yResolution);
+    chrome.test.assertEq("Canon", metadata.cameraMake);
+    chrome.test.assertEq("Canon EOS 5D Mark II", metadata.cameraModel);
+    chrome.test.assertEq(0.01, metadata.exposureTimeSeconds);
+    chrome.test.assertFalse(metadata.flashFired);
+    chrome.test.assertEq(3.2, metadata.fNumber);
+    chrome.test.assertEq(100, metadata.focalLengthMm);
+    chrome.test.assertEq(1600, metadata.isoEquivalent);
+
+    chrome.test.assertEq(0, metadata.attachedImages.length);
+
+    chrome.test.succeed();
+  }
+
+  RunMetadataTest("test.jpg", {}, verifyMetadata);
+}
+
 function InvalidMultimediaFileTest() {
   function verifyMetadata(metadata) {
     chrome.test.assertEq(null, metadata);
@@ -169,6 +193,7 @@ chrome.test.getConfig(function(config) {
   // Should still be able to sniff MP3 MIME type without proprietary codecs.
   var testsToRun = [
     ImageMIMETypeOnlyTest,
+    ImageTagsTest,
     InvalidMultimediaFileTest
   ];