Don't apply left/right inset on gesture nav landscape

Fix: 201775630
Test: Go to landscape with gesture nav, widgets not cropped and cellSize matches HSV
Change-Id: I68e62897b31dbb8509c95a20e8d3a3528a40fe9b
diff --git a/src/com/android/launcher3/LauncherRootView.java b/src/com/android/launcher3/LauncherRootView.java
index 7de2ee4..5ef3690 100644
--- a/src/com/android/launcher3/LauncherRootView.java
+++ b/src/com/android/launcher3/LauncherRootView.java
@@ -1,5 +1,6 @@
 package com.android.launcher3;
 
+import static com.android.launcher3.ResourceUtils.INVALID_RESOURCE_HANDLE;
 import static com.android.launcher3.config.FeatureFlags.SEPARATE_RECENTS_ACTIVITY;
 
 import android.annotation.TargetApi;
@@ -99,7 +100,11 @@
                 oldNavInsets.bottom);
 
         if (dp.isLandscape) {
-            if (dp.isTablet) {
+            boolean isGesturalMode = ResourceUtils.getIntegerByName(
+                    "config_navBarInteractionMode",
+                    resources,
+                    INVALID_RESOURCE_HANDLE) == 2;
+            if (dp.isTablet || isGesturalMode) {
                 newNavInsets.bottom = ResourceUtils.getNavbarSize(
                         "navigation_bar_height_landscape", resources);
             } else {
diff --git a/src/com/android/launcher3/util/WindowManagerCompat.java b/src/com/android/launcher3/util/WindowManagerCompat.java
index bfdf1e4..e1b9478 100644
--- a/src/com/android/launcher3/util/WindowManagerCompat.java
+++ b/src/com/android/launcher3/util/WindowManagerCompat.java
@@ -60,10 +60,10 @@
         }
         WindowInsets defaultInsets = windowContext.getSystemService(WindowManager.class)
                 .getMaximumWindowMetrics().getWindowInsets();
-        boolean hasNavbar = ResourceUtils.getIntegerByName(
+        boolean isGesturalMode = ResourceUtils.getIntegerByName(
                 "config_navBarInteractionMode",
                 windowContext.getResources(),
-                INVALID_RESOURCE_HANDLE) != 0;
+                INVALID_RESOURCE_HANDLE) == 2;
 
         WindowInsets.Builder insetsBuilder = new WindowInsets.Builder(defaultInsets);
         Set<WindowBounds> result = new ArraySet<>();
@@ -74,7 +74,7 @@
         if (isTablet && !consumeTaskBar) {
             portraitNav = landscapeNav = Insets.of(0, 0, 0, windowContext.getResources()
                     .getDimensionPixelSize(R.dimen.taskbar_size));
-        } else if (hasNavbar) {
+        } else if (!isGesturalMode) {
             portraitNav = Insets.of(0, 0, 0,
                     getSystemResource(windowContext, "navigation_bar_height", swDP));
             landscapeNav = isTablet