Use only renderer driven offsets for fullscreen state.

chrome/android/junit/src/org/chromium/chrome/browser/fullscreen/BrowserStateBrowserControlsVisibilityDelegateTest.java

Index: chrome/android/junit/src/org/chromium/chrome/browser/fullscreen/BrowserStateBrowserControlsVisibilityDelegateTest.java
diff --git a/chrome/android/junit/src/org/chromium/chrome/browser/fullscreen/BrowserStateBrowserControlsVisibilityDelegateTest.java b/chrome/android/junit/src/org/chromium/chrome/browser/fullscreen/BrowserStateBrowserControlsVisibilityDelegateTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..4cf267c9365b6f60e28de83d1e0fb318433528f7
--- /dev/null
+++ b/chrome/android/junit/src/org/chromium/chrome/browser/fullscreen/BrowserStateBrowserControlsVisibilityDelegateTest.java
@@ -0,0 +1,163 @@
+// Copyright 2016 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.
+
+package org.chromium.chrome.browser.fullscreen;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import static org.chromium.chrome.browser.fullscreen.BrowserStateBrowserControlsVisibilityDelegate.MINIMUM_SHOW_DURATION_MS;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowLooper;
+import org.robolectric.shadows.ShadowSystemClock;
+
+import org.chromium.base.test.util.Feature;
+import org.chromium.chrome.browser.tab.Tab;
+import org.chromium.testing.local.LocalRobolectricTestRunner;
+
+/**
+ * Unit tests for the BrowserStateBrowserControlsVisibilityDelegate.
+ */
+@RunWith(LocalRobolectricTestRunner.class)
+@Config(manifest = Config.NONE)
+public class BrowserStateBrowserControlsVisibilityDelegateTest {
+    @Mock private Tab mTab;
+
+    private BrowserStateBrowserControlsVisibilityDelegate mDelegate;
+
+    @Before
+    public void beforeTest() {
+        MockitoAnnotations.initMocks(this);
+
+        mDelegate = new BrowserStateBrowserControlsVisibilityDelegate();
+        mDelegate.setTab(mTab);
+    }
+
+    private void advanceTime(long amount) {
+        ShadowSystemClock.setCurrentTimeMillis(ShadowSystemClock.elapsedRealtime() + amount);
+    }
+
+    @Test
+    @Feature("Fullscreen")
+    public void testTransientShow() {
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+        mDelegate.showControlsTransient();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        ShadowLooper.runUiThreadTasksIncludingDelayedTasks();
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+
+        verify(mTab, times(2)).updateFullscreenEnabledState();
+    }
+
+    @Test
+    @Feature("Fullscreen")
+    public void testShowPersistentTokenWithDelayedHide() {
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+        int token = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        // Advance the clock to exceed the minimum show time.
+        advanceTime(2 * MINIMUM_SHOW_DURATION_MS);
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        mDelegate.hideControlsPersistent(token);
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+
+        verify(mTab, times(2)).updateFullscreenEnabledState();
+    }
+
+    @Test
+    @Feature("Fullscreen")
+    public void testShowPersistentTokenWithImmediateHide() {
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+        int token = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        mDelegate.hideControlsPersistent(token);
+
+        // If the controls are not shown for the mimimum allowed time, then a task is posted to
+        // keep them shown for longer.  Ensure the controls can not be hidden until this delayed
+        // task has been run.
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        ShadowLooper.runUiThreadTasksIncludingDelayedTasks();
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+
+        verify(mTab, times(2)).updateFullscreenEnabledState();
+    }
+
+    @Test
+    @Feature("Fullscreen")
+    public void testShowPersistentBeyondRequiredMinDurationAndShowTransient() {
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+        int token = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        // Advance the clock to exceed the minimum show time.
+        advanceTime(2 * MINIMUM_SHOW_DURATION_MS);
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        // At this point, the controls have been shown long enough that the transient request will
+        // be a no-op.
+        mDelegate.showControlsTransient();
+        mDelegate.hideControlsPersistent(token);
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+
+        verify(mTab, times(2)).updateFullscreenEnabledState();
+    }
+
+    @Test
+    @Feature("Fullscreen")
+    public void testShowPersistentBelowRequiredMinDurationAndShowTransient() {
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+        int token = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        // Advance the clock but not beyond the min show duration.
+        advanceTime((long) (0.5 * MINIMUM_SHOW_DURATION_MS));
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        // At this point, the controls have not been shown long enough, so the transient request
+        // will delay the ability to hide.
+        mDelegate.showControlsTransient();
+        mDelegate.hideControlsPersistent(token);
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        // Run the pending tasks on the UI thread, which will include the transient delayed task.
+        ShadowLooper.runUiThreadTasksIncludingDelayedTasks();
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+
+        verify(mTab, times(2)).updateFullscreenEnabledState();
+    }
+
+    @Test
+    @Feature("Fullscreen")
+    public void testShowPersistentMultipleTimes() {
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+        int firstToken = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        int secondToken = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        int thirdToken = mDelegate.showControlsPersistent();
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        // Advance the clock to exceed the minimum show time.
+        advanceTime(2 * MINIMUM_SHOW_DURATION_MS);
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+
+        mDelegate.hideControlsPersistent(secondToken);
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        mDelegate.hideControlsPersistent(firstToken);
+        assertFalse(mDelegate.isHidingBrowserControlsEnabled());
+        mDelegate.hideControlsPersistent(thirdToken);
+        assertTrue(mDelegate.isHidingBrowserControlsEnabled());
+
+        verify(mTab, times(2)).updateFullscreenEnabledState();
+    }
+}