Implement getType method in ChromeFileProvider

chrome/android/java/src/org/chromium/chrome/browser/util/ChromeFileProvider.java

Index: chrome/android/java/src/org/chromium/chrome/browser/util/ChromeFileProvider.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/util/ChromeFileProvider.java b/chrome/android/java/src/org/chromium/chrome/browser/util/ChromeFileProvider.java
index 527c9d1f4ed9f14d4fdc26551370559248acb6f3..ef27f50e4f9709da4ae395690c54ab0415a9ba00 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/util/ChromeFileProvider.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/util/ChromeFileProvider.java
@@ -126,6 +126,12 @@ public class ChromeFileProvider extends FileProvider {
     }
 
     @Override
+    public String getType(Uri uri) {
+        Uri fileUri = getFileUriWhenReady(uri);
+        return fileUri != null ? super.getType(fileUri) : null;
+    }
+
+    @Override
     public int delete(Uri uri, String selection, String[] selectionArgs) {
         if (uri != null && uri.getPath().contains(BLOCKED_FILE_PREFIX)) {
             synchronized (sLock) {