Resize only the virtual viewport when the OSK triggers a resize.

chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
index d613d2bdca05d334f800bd38fed1937d40617493..e07c8f0e80b7bfb77cdec4ed3ce0c63dea852e62 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
@@ -430,6 +430,42 @@ public final class Tab implements ViewGroup.OnHierarchyChangeListener,
         }
 
         @Override
+        public int getSystemWindowInsetLeft() {
+            ChromeActivity activity = getActivity();
+            if (activity != null && activity.getInsetConsumerView() != null) {
+                return activity.getInsetConsumerView().getSystemWindowInsetsLeft();
+            }
+            return 0;
+        }
+
+        @Override
+        public int getSystemWindowInsetTop() {
+            ChromeActivity activity = getActivity();
+            if (activity != null && activity.getInsetConsumerView() != null) {
+                return activity.getInsetConsumerView().getSystemWindowInsetsTop();
+            }
+            return 0;
+        }
+
+        @Override
+        public int getSystemWindowInsetRight() {
+            ChromeActivity activity = getActivity();
+            if (activity != null && activity.getInsetConsumerView() != null) {
+                return activity.getInsetConsumerView().getSystemWindowInsetsRight();
+            }
+            return 0;
+        }
+
+        @Override
+        public int getSystemWindowInsetBottom() {
+            ChromeActivity activity = getActivity();
+            if (activity != null && activity.getInsetConsumerView() != null) {
+                return activity.getInsetConsumerView().getSystemWindowInsetsBottom();
+            }
+            return 0;
+        }
+
+        @Override
         public ContentVideoViewEmbedder getContentVideoViewEmbedder() {
             return new ActivityContentVideoViewEmbedder(getActivity()) {
                 @Override