Issue #1378092 by oriol_e9g, wedge, beejeebus: Fixed User pictures are not removed properly.

core/modules/user/user.module

@@ -456,6 +456,10 @@ function user_save($account, $edit = array()) {
           file_delete($account->original->picture);
         }
       }
+      elseif (isset($edit['picture_delete']) && $edit['picture_delete']) {
+        file_usage_delete($account->original->picture, 'user', 'user', $account->uid);
+        file_delete($account->original->picture);
+      }
       $account->picture = empty($account->picture->fid) ? 0 : $account->picture->fid;
 
       // Do not allow 'uid' to be changed.

core/modules/user/user.test

@@ -1074,6 +1074,50 @@ class UserPictureTestCase extends DrupalWebTestCase {
     $this->assertEqual($pic_path, (string) $elements[0]['src'], t("User picture source is correct: " . $pic_path . " " . print_r($elements, TRUE)));
   }
 
+  /**
+   * Tests deletion of user pictures.
+   */
+  function testDeletePicture() {
+    $this->drupalLogin($this->user);
+
+    $image = current($this->drupalGetTestFiles('image'));
+    $info = image_get_info($image->uri);
+
+    // Set new variables: valid dimensions, valid filesize (0 = no limit).
+    $test_dim = ($info['width'] + 10) . 'x' . ($info['height'] + 10);
+    variable_set('user_picture_dimensions', $test_dim);
+    variable_set('user_picture_file_size', 0);
+
+    // Save a new picture.
+    $edit = array('files[picture_upload]' => drupal_realpath($image->uri));
+    $this->drupalPost('user/' . $this->user->uid . '/edit', $edit, t('Save'));
+
+    // Load actual user data from database.
+    $account = user_load($this->user->uid, TRUE);
+    $pic_path = isset($account->picture) ? $account->picture->uri : NULL;
+
+    // Check if image is displayed in user's profile page.
+    $this->drupalGet('user');
+    $this->assertRaw(file_uri_target($pic_path), "Image is displayed in user's profile page");
+
+    // Check if file is located in proper directory.
+    $this->assertTrue(is_file($pic_path), 'File is located in proper directory');
+
+    $edit = array('picture_delete' => 1);
+    $this->drupalPost('user/' . $this->user->uid . '/edit', $edit, t('Save'));
+
+    // Load actual user data from database.
+    $account1 = user_load($this->user->uid, TRUE);
+    $this->assertNull($account1->picture, 'User object has no picture');
+
+    $file = file_load($account->picture->fid);
+    $this->assertFalse($file, 'File is removed from database');
+
+    // Clear out PHP's file stat cache so we see the current value.
+    clearstatcache();
+    $this->assertFalse(is_file($pic_path), 'File is removed from file system');
+  }
+
   function saveUserPicture($image) {
     $edit = array('files[picture_upload]' => drupal_realpath($image->uri));
     $this->drupalPost('user/' . $this->user->uid . '/edit', $edit, t('Save'));