[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..43210b50482d8893b788ee7f52f625217c5760c5 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
@@ -12,6 +12,11 @@ import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.Context
  */
 public interface ContextualSearchPanelDelegate {
     /**
+     * @return Whether the Panel is in fullscreen size.
+     */
+    boolean isFullscreenSizePanel();
+
+    /**
      * @return Whether the Panel is showing.
      */
     boolean isShowing();
@@ -22,6 +27,26 @@ 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();
+
+    /**
+     * @return The width of the Search Content View in pixels.
+     */
+    int getSearchContentViewWidthPx();
+
+    /**
+     * @return The height of the Search Content View in pixels.
+     */
+    int getSearchContentViewHeightPx();
+
+    /**
      * Maximizes the Contextual Search Panel, then promotes it to a regular Tab.
      * @param reason The {@code StateChangeReason} behind the maximization and promotion to tab.
      */