Support setting mouse cursor icon in Android N.

chrome/android/java/res/layout/main.xml

Index: chrome/android/java/res/layout/main.xml
diff --git a/chrome/android/java/res/layout/main.xml b/chrome/android/java/res/layout/main.xml
index 4d5402a867869943eb9cbe19d7be5a96224e2d81..6884914c5a72f7a8e3bf6b97191a859c48ec38df 100644
--- a/chrome/android/java/res/layout/main.xml
+++ b/chrome/android/java/res/layout/main.xml
@@ -23,12 +23,12 @@
            <FrameLayout
                 android:id="@+id/overview_list_layout_holder"
                 android:layout_width="match_parent"
-                android:layout_height="match_parent" />
+                android:layout_height="wrap_content" />
 
             <org.chromium.chrome.browser.snackbar.BottomContainer
                 android:id="@+id/bottom_container"
                 android:layout_width="match_parent"
-                android:layout_height="match_parent"
+                android:layout_height="wrap_content"
                 android:layout_gravity="start|bottom">
 
                 <HorizontalScrollView
@@ -56,7 +56,7 @@
             <org.chromium.chrome.browser.widget.FadingBackgroundView
                 android:id="@+id/fading_focus_target"
                 android:layout_width="match_parent"
-                android:layout_height="match_parent"
+                android:layout_height="0dp"
                 android:layout_marginTop="@dimen/tab_strip_height"
                 android:background="@color/omnibox_focused_fading_background_color"
                 android:visibility="gone" />
@@ -92,7 +92,7 @@
            <FrameLayout
                 android:id="@+id/bottom_sheet_snackbar_container"
                 android:layout_width="match_parent"
-                android:layout_height="match_parent"
+                android:layout_height="wrap_content"
                 android:layout_gravity="start|bottom"
                 android:layout_marginTop="@dimen/bottom_nav_height_inverse" />
 
@@ -102,7 +102,6 @@
                 android:layout="@layout/empty_background_view_tablet"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent" />
-
         </android.support.design.widget.CoordinatorLayout>
 
     </LinearLayout>