Add WM_EVENT_TRUSTED_PIN and WINDOW_STATE_TYPE_TRUSTED_PINNED to Ash.

components/exo/shell_surface_unittest.cc

 // Copyright 2015 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/aura/wm_window_aura.h"
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
 #include "ash/common/wm_shell.h"
 #include "ash/wm/window_state_aura.h"
@@ skipping 149 matching lines @@
             shell_surface->GetWidget()->GetWindowBoundsInScreen().ToString());
 }
 
 TEST_F(ShellSurfaceTest, SetPinned) {
   gfx::Size buffer_size(256, 256);
   std::unique_ptr<Buffer> buffer(
       new Buffer(exo_test_helper()->CreateGpuMemoryBuffer(buffer_size)));
   std::unique_ptr<Surface> surface(new Surface);
   std::unique_ptr<ShellSurface> shell_surface(new ShellSurface(surface.get()));
 
-  shell_surface->SetPinned(true);
+  shell_surface->SetPinned(true, /* trusted */ true);
   EXPECT_TRUE(
       ash::wm::GetWindowState(shell_surface->GetWidget()->GetNativeWindow())
           ->IsPinned());
 
-  shell_surface->SetPinned(false);
+  shell_surface->SetPinned(false, /* trusted */ true);
   EXPECT_FALSE(
       ash::wm::GetWindowState(shell_surface->GetWidget()->GetNativeWindow())
           ->IsPinned());
+
+  shell_surface->SetPinned(true, /* trusted */ false);
+  EXPECT_TRUE(
+      ash::wm::GetWindowState(shell_surface->GetWidget()->GetNativeWindow())
+          ->IsPinned());
+
+  shell_surface->SetPinned(false, /* trusted */ false);
+  EXPECT_FALSE(
+      ash::wm::GetWindowState(shell_surface->GetWidget()->GetNativeWindow())
+          ->IsPinned());
 }
 
 TEST_F(ShellSurfaceTest, SetTitle) {
   std::unique_ptr<Surface> surface(new Surface);
   std::unique_ptr<ShellSurface> shell_surface(new ShellSurface(surface.get()));
 
   shell_surface->SetTitle(base::string16(base::ASCIIToUTF16("test")));
   surface->Commit();
 }
 
@@ skipping 489 matching lines @@
             shell_surface->shadow_underlay_for_test()->bounds());
 
   // Leave fullscreen mode. Shadow underlay is restored.
   window->GetWindowState()->OnWMEvent(&event);
   EXPECT_TRUE(shell_surface->shadow_underlay_for_test()->IsVisible());
   EXPECT_EQ(shadow_bounds, shell_surface->shadow_underlay_for_test()->bounds());
 }
 
 }  // namespace
 }  // namespace exo