Handle F6 and F7 (brightness keys) in ash [part 3 of 3].

ash/accelerators/accelerator_controller_unittest.cc

Index: ash/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index 78d731b16dea45864d8a04768719ab533c53e275..617b4ec118208dc59fe17c2b8744a6c86f2c4e62 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -531,6 +531,41 @@ TEST_F(AcceleratorControllerTest, GlobalAccelerators) {
     EXPECT_EQ(1, delegate->handle_brightness_up_count());
     EXPECT_EQ(f7, delegate->last_accelerator());
   }
+#if defined(OS_CHROMEOS)
+  // ui::VKEY_BRIGHTNESS_DOWN/UP are not defined on Windows.
+  const ui::Accelerator brightness_down(
+      ui::VKEY_BRIGHTNESS_DOWN, false, false, false);
+  const ui::Accelerator brightness_up(
+      ui::VKEY_BRIGHTNESS_UP, false, false, false);
+  {
+    DummyBrightnessControlDelegate* delegate =
+        new DummyBrightnessControlDelegate(false);
+    GetController()->SetBrightnessControlDelegate(
+        scoped_ptr<BrightnessControlDelegate>(delegate).Pass());
+    EXPECT_EQ(0, delegate->handle_brightness_down_count());
+    EXPECT_FALSE(GetController()->Process(brightness_down));
+    EXPECT_EQ(1, delegate->handle_brightness_down_count());
+    EXPECT_EQ(brightness_down, delegate->last_accelerator());
+    EXPECT_EQ(0, delegate->handle_brightness_up_count());
+    EXPECT_FALSE(GetController()->Process(brightness_up));
+    EXPECT_EQ(1, delegate->handle_brightness_up_count());
+    EXPECT_EQ(brightness_up, delegate->last_accelerator());
+  }
+  {
+    DummyBrightnessControlDelegate* delegate =
+        new DummyBrightnessControlDelegate(true);
+    GetController()->SetBrightnessControlDelegate(
+        scoped_ptr<BrightnessControlDelegate>(delegate).Pass());
+    EXPECT_EQ(0, delegate->handle_brightness_down_count());
+    EXPECT_TRUE(GetController()->Process(brightness_down));
+    EXPECT_EQ(1, delegate->handle_brightness_down_count());
+    EXPECT_EQ(brightness_down, delegate->last_accelerator());
+    EXPECT_EQ(0, delegate->handle_brightness_up_count());
+    EXPECT_TRUE(GetController()->Process(brightness_up));
+    EXPECT_EQ(1, delegate->handle_brightness_up_count());
+    EXPECT_EQ(brightness_up, delegate->last_accelerator());
+  }
+#endif
 #if !defined(NDEBUG)
   // RotateScreen
   EXPECT_TRUE(GetController()->Process(