A couple of fixes to bubble view:

ui/views/bubble/bubble_frame_view_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/hit_test.h"
 #include "ui/gfx/insets.h"
 #include "ui/views/bubble/bubble_border.h"
 #include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/bubble/bubble_frame_view.h"
 #include "ui/views/test/views_test_base.h"
@@ skipping 210 matching lines @@
 TEST_F(BubbleFrameViewTest, GetUpdatedWindowBoundsMirroringFails) {
   TestBubbleFrameView frame;
   frame.bubble_border()->set_arrow_location(BubbleBorder::TOP_LEFT);
   gfx::Rect window_bounds = frame.GetUpdatedWindowBounds(
       gfx::Rect(400, 100, 50, 50),  // |anchor_rect|
       gfx::Size(500, 700),          // |client_size|
       true);                        // |adjust_if_offscreen|
   EXPECT_EQ(BubbleBorder::TOP_LEFT, frame.bubble_border()->arrow_location());
 }
 
+TEST_F(BubbleFrameViewTest, TestMirroringForCenteredArrow) {
+  TestBubbleFrameView frame;
+
+  // Test bubble not fitting above the anchor.
+  frame.bubble_border()->set_arrow_location(BubbleBorder::BOTTOM_CENTER);
+  gfx::Rect window_bounds = frame.GetUpdatedWindowBounds(
+      gfx::Rect(100, 100, 50, 50),  // |anchor_rect|
+      gfx::Size(500, 700),          // |client_size|
+      true);                        // |adjust_if_offscreen|
+  EXPECT_EQ(BubbleBorder::TOP_CENTER, frame.bubble_border()->arrow_location());
+
+  // Test bubble not fitting below the anchor.
+  frame.bubble_border()->set_arrow_location(BubbleBorder::TOP_CENTER);
+  window_bounds = frame.GetUpdatedWindowBounds(
+      gfx::Rect(300, 800, 50, 50),  // |anchor_rect|
+      gfx::Size(500, 200),          // |client_size|
+      true);                        // |adjust_if_offscreen|
+  EXPECT_EQ(BubbleBorder::BOTTOM_CENTER,
+            frame.bubble_border()->arrow_location());
+
+  // Test bubble not fitting to the right of the anchor.
+  frame.bubble_border()->set_arrow_location(BubbleBorder::LEFT_CENTER);
+  window_bounds = frame.GetUpdatedWindowBounds(
+      gfx::Rect(800, 300, 50, 50),  // |anchor_rect|
+      gfx::Size(200, 500),          // |client_size|
+      true);                        // |adjust_if_offscreen|
+  EXPECT_EQ(BubbleBorder::RIGHT_CENTER,
+            frame.bubble_border()->arrow_location());
+
+  // Test bubble not fitting to the left of the anchor.
+  frame.bubble_border()->set_arrow_location(BubbleBorder::RIGHT_CENTER);
+  window_bounds = frame.GetUpdatedWindowBounds(
+      gfx::Rect(100, 300, 50, 50),  // |anchor_rect|
+      gfx::Size(500, 500),          // |client_size|
+      true);                        // |adjust_if_offscreen|
+  EXPECT_EQ(BubbleBorder::LEFT_CENTER, frame.bubble_border()->arrow_location());
+}
+
 // Test that the arrow will not be mirrored when |adjust_if_offscreen| is false.
 TEST_F(BubbleFrameViewTest, GetUpdatedWindowBoundsDontTryMirror) {
   TestBubbleFrameView frame;
   frame.bubble_border()->set_arrow_location(BubbleBorder::TOP_RIGHT);
   gfx::Rect window_bounds = frame.GetUpdatedWindowBounds(
       gfx::Rect(100, 900, 50, 50),  // |anchor_rect|
       gfx::Size(500, 500),          // |client_size|
       false);                       // |adjust_if_offscreen|
   EXPECT_EQ(BubbleBorder::TOP_RIGHT, frame.bubble_border()->arrow_location());
   // The coordinates should be pointing to anchor_rect from TOP_RIGHT.
@@ skipping 125 matching lines @@
       gfx::Size(500, 500),          // |client_size|
       true);                        // |adjust_if_offscreen|
   EXPECT_EQ(BubbleBorder::RIGHT_CENTER,
             frame.bubble_border()->arrow_location());
   EXPECT_EQ(window_bounds.bottom(), 1000);
   EXPECT_EQ(window_bounds.y() +
             frame.bubble_border()->GetArrowOffset(window_bounds.size()), 925);
 }
 
 }  // namespace views