Fix UMA metric to not count multiple image/ tags as generic.

ui/android/junit/src/org/chromium/ui/base/SelectFileDialogTest.java

Index: ui/android/junit/src/org/chromium/ui/base/SelectFileDialogTest.java
diff --git a/ui/android/junit/src/org/chromium/ui/base/SelectFileDialogTest.java b/ui/android/junit/src/org/chromium/ui/base/SelectFileDialogTest.java
index 9c195f11a9856e7ac69e0ff97f461caa60034e68..aaae9c83351e4f486498a9e400aef9b3ad28b84f 100644
--- a/ui/android/junit/src/org/chromium/ui/base/SelectFileDialogTest.java
+++ b/ui/android/junit/src/org/chromium/ui/base/SelectFileDialogTest.java
@@ -51,6 +51,10 @@ public class SelectFileDialogTest {
                 SelectFileDialog.SELECT_FILE_DIALOG_SCOPE_VIDEOS, scopeForFileTypes("video/ogg"));
         assertEquals(SelectFileDialog.SELECT_FILE_DIALOG_SCOPE_GENERIC,
                 scopeForFileTypes("video/*", "test/plain"));
+        assertEquals(SelectFileDialog.SELECT_FILE_DIALOG_SCOPE_IMAGES,
+                scopeForFileTypes("image/x-png", "image/gif", "image/jpeg"));
+        assertEquals(SelectFileDialog.SELECT_FILE_DIALOG_SCOPE_GENERIC,
+                scopeForFileTypes("image/x-png", "image/gif", "image/jpeg", "text/plain"));
 
         assertEquals(SelectFileDialog.SELECT_FILE_DIALOG_SCOPE_IMAGES_AND_VIDEOS,
                 scopeForFileTypes("video/*", "image/*"));