Add WM_EVENT_TRUSTED_PIN and WINDOW_STATE_TYPE_TRUSTED_PINNED to Ash.

ash/wm/screen_pinning_controller_unittest.cc

Index: ash/wm/screen_pinning_controller_unittest.cc
diff --git a/ash/wm/screen_pinning_controller_unittest.cc b/ash/wm/screen_pinning_controller_unittest.cc
index c5334a67e80a6a9b8859ae967498543f5374a6f8..a29fb3ce45dc63262fc4a87852dd4d785f16eaa5 100644
--- a/ash/wm/screen_pinning_controller_unittest.cc
+++ b/ash/wm/screen_pinning_controller_unittest.cc
@@ -7,6 +7,7 @@
 #include <vector>
 
 #include "ash/aura/wm_window_aura.h"
+#include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
 #include "ash/common/wm_shell.h"
@@ -33,7 +34,7 @@ TEST_F(ScreenPinningControllerTest, IsPinned) {
   aura::Window* w1 = CreateTestWindowInShellWithId(0);
   wm::ActivateWindow(w1);
 
-  wm::PinWindow(w1);
+  wm::PinWindow(w1, /* trusted */ false);
   EXPECT_TRUE(WmShell::Get()->IsPinned());
 }
 
@@ -42,12 +43,12 @@ TEST_F(ScreenPinningControllerTest, OnlyOnePinnedWindow) {
   aura::Window* w2 = CreateTestWindowInShellWithId(1);
   wm::ActivateWindow(w1);
 
-  wm::PinWindow(w1);
+  wm::PinWindow(w1, /* trusted */ false);
   EXPECT_TRUE(WmWindowAura::Get(w1)->GetWindowState()->IsPinned());
   EXPECT_FALSE(WmWindowAura::Get(w2)->GetWindowState()->IsPinned());
 
   // Prohibit to pin two (or more) windows.
-  wm::PinWindow(w2);
+  wm::PinWindow(w2, /* trusted */ false);
   EXPECT_TRUE(WmWindowAura::Get(w1)->GetWindowState()->IsPinned());
   EXPECT_FALSE(WmWindowAura::Get(w2)->GetWindowState()->IsPinned());
 }
@@ -57,7 +58,7 @@ TEST_F(ScreenPinningControllerTest, FullscreenInPinnedMode) {
   aura::Window* w2 = CreateTestWindowInShellWithId(1);
   wm::ActivateWindow(w1);
 
-  wm::PinWindow(w1);
+  wm::PinWindow(w1, /* trusted */ false);
   {
     // Window w1 should be in front of w2.
     std::vector<aura::Window*> siblings = w1->parent()->children();
@@ -152,4 +153,17 @@ TEST_F(ScreenPinningControllerTest, FullscreenInPinnedMode) {
   }
 }
 
+TEST_F(ScreenPinningControllerTest, TrustedPinnedWithAccelerator) {
+  aura::Window* w1 = CreateTestWindowInShellWithId(0);
+  wm::ActivateWindow(w1);
+
+  wm::PinWindow(w1, /* trusted */ true);
+  EXPECT_TRUE(WmShell::Get()->IsPinned());
+
+  WmShell::Get()->accelerator_controller()->PerformActionIfEnabled(UNPIN);
+  // The UNPIN accelerator key is disabled for trusted pinned and the window
+  // must be still pinned.
+  EXPECT_TRUE(WmShell::Get()->IsPinned());
+}
+
 }  // namespace ash