Photo Picker Dialog: Use sandboxed utility process for decoding images.

chrome/android/java/src/org/chromium/chrome/browser/photo_picker/MimeTypeFileFilter.java

Index: chrome/android/java/src/org/chromium/chrome/browser/photo_picker/MimeTypeFileFilter.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/photo_picker/MimeTypeFileFilter.java b/chrome/android/java/src/org/chromium/chrome/browser/photo_picker/MimeTypeFileFilter.java
index 2b64157e436711fa8bc78bf667f160887115a10a..66cfc4512e6a3a81e5f99ed398d44cc5784bde2f 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/photo_picker/MimeTypeFileFilter.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/photo_picker/MimeTypeFileFilter.java
@@ -10,6 +10,7 @@ import android.webkit.MimeTypeMap;
 import java.io.File;
 import java.io.FileFilter;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Locale;
 
 /**
@@ -23,13 +24,12 @@ class MimeTypeFileFilter implements FileFilter {
 
     /**
      * Contructs a MimeTypeFileFilter object.
-     * @param acceptAttr A comma seperated list of MIME types this filter accepts.
-     *                   For example: images/gif, video/*.
+     * @param mimeTypes A list of MIME types this filter accepts.
+     *                  For example: images/gif, video/*.
      */
-    // TODO(finnur): Convert param to List.
-    public MimeTypeFileFilter(@NonNull String acceptAttr) {
-        for (String field : acceptAttr.toLowerCase(Locale.US).split(",")) {
-            field = field.trim();
+    public MimeTypeFileFilter(@NonNull List<String> mimeTypes) {
+        for (String field : mimeTypes) {
+            field = field.trim().toLowerCase(Locale.US);
             if (field.startsWith(".")) {
                 mExtensions.add(field.substring(1));
             } else if (field.endsWith("/*")) {