Add test case for updating the bounds of snapped window.

ash/wm/workspace/snap_sizer_unittest.cc

 // Copyright 2013 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 "ash/wm/workspace/snap_sizer.h"
 
 #include "ash/ash_switches.h"
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 305 matching lines @@
   sizer1.SelectDefaultSizeAndDisableResize();
   sizer1.SnapWindowToTargetBounds();
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
 
   // Snapping to a SnapSizer's initial bounds snaps to 50% too.
   SnapSizer sizer2(window_state, gfx::Point(), SnapSizer::LEFT_EDGE,
       SnapSizer::OTHER_INPUT);
   sizer2.SnapWindowToTargetBounds();
   expected.set_x(kWorkAreaBounds.x());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
+  EXPECT_EQ(wm::SHOW_TYPE_LEFT_SNAPPED, window_state->window_show_type());
+
+  // Setting bounds should keep the window snapped.
+  expected = kWorkAreaBounds;
+  expected.set_width(500);
+  window->SetBounds(gfx::Rect(10, 10, 500, 300));
+  EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
 }
 
 // Test that snapping left/right preserves the restore bounds.
 TEST_F(SnapSizerTest, RestoreBounds) {
   scoped_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
   wm::WindowState* window_state = wm::GetWindowState(window.get());
 
   EXPECT_TRUE(window_state->IsNormalShowState());
 
@@ skipping 48 matching lines @@
       window->bounds().width(), // No expectation for the width.
       kWorkAreaBounds.height());
   EXPECT_EQ(expected_snapped_bounds.ToString(),
             window->GetBoundsInScreen().ToString());
 
   // The window should still be auto managed despite being right maximized.
   EXPECT_TRUE(window_state->window_position_managed());
 }
 
 }  // namespace ash