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

chrome/common/extensions/api/media_galleries.idl

Index: chrome/common/extensions/api/media_galleries.idl
diff --git a/chrome/common/extensions/api/media_galleries.idl b/chrome/common/extensions/api/media_galleries.idl
index 4c21ef75971a7deb7df4b4ae256a97926dad8d23..7ef672796d012f5e8c37e920b8fdd46056b645d2 100644
--- a/chrome/common/extensions/api/media_galleries.idl
+++ b/chrome/common/extensions/api/media_galleries.idl
@@ -128,17 +128,30 @@ namespace mediaGalleries {
     // The browser sniffed mime type.
     DOMString mimeType;
 
-    // Defined for video. In pixels.
+    // Defined for images and video. In pixels.
     long? height;
     long? width;
 
+    // Defined for images only.
+    double? xResolution;
+    double? yResolution;
+
     // Defined for audio and video. In seconds.
     double? duration;
 
-    // Defined for video. In degrees.
+    // Defined for images and video. In degrees.
     long? rotation;
 
-    // Defined for audio and video.
+    // Defined for images only.
+    DOMString? cameraMake;
+    DOMString? cameraModel;
+    double? exposureTimeSeconds;
+    boolean? flashFired;
+    double? fNumber;
+    double? focalLengthMm;
+    double? isoEquivalent;
+
+    // Defined for audio and video only.
     DOMString? album;
     DOMString? artist;
     DOMString? comment;