Remove cached dp viewports in LayoutManager

chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ToolbarSceneLayer.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ToolbarSceneLayer.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ToolbarSceneLayer.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ToolbarSceneLayer.java
index 52554bddf0771a79d6919d71706c86fee7915a20..8688b116db88dc509182f7819df326ef8678cf31 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ToolbarSceneLayer.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/scene_layer/ToolbarSceneLayer.java
@@ -5,7 +5,7 @@
 package org.chromium.chrome.browser.compositor.scene_layer;
 
 import android.content.Context;
-import android.graphics.Rect;
+import android.graphics.RectF;
 
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.chrome.R;
@@ -46,7 +46,7 @@ public class ToolbarSceneLayer extends SceneOverlayLayer implements SceneOverlay
     private LayoutRenderHost mRenderHost;
 
     /** The size of the viewport (full-screen minus status bar). */
-    private Rect mViewport;
+    private RectF mViewport;
 
     /**
      * @param context An Android context to use.
@@ -58,7 +58,7 @@ public class ToolbarSceneLayer extends SceneOverlayLayer implements SceneOverlay
         mContext = context;
         mLayoutProvider = provider;
         mRenderHost = renderHost;
-        mViewport = new Rect();
+        mViewport = new RectF();
     }
 
     /**