[Contextual Search] Adds basic support for narrow Search Panel.

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
index 581a9a21408f0c393337307c28566a9790a95aa3..4543684c0ab7cfc49225b6a398036b5c042524bc 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
@@ -22,6 +22,16 @@ public interface ContextualSearchPanelDelegate {
     boolean isPeeking();
 
     /**
+     * @return The width of the Contextual Search Panel in pixels.
+     */
+    int getMaximumWidthPx();
+
+    /**
+     * @return The height of the Contextual Search Panel in pixels.
+     */
+    int getMaximumHeightPx();
+
+    /**
      * Maximizes the Contextual Search Panel, then promotes it to a regular Tab.
      * @param reason The {@code StateChangeReason} behind the maximization and promotion to tab.
      */