Expose the page URL to the java context menu params.

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuParams.java

Index: chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuParams.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuParams.java b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuParams.java
index e7e36f099f53f252687aa27d1953ba1bb6ea9edd..861cd9b958da1a755650779bb886f0db948b43ac 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuParams.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ContextMenuParams.java
@@ -39,6 +39,7 @@ public class ContextMenuParams {
         }
     }
 
+    private final String mPageUrl;
     private final String mLinkUrl;
     private final String mLinkText;
     private final String mUnfilteredLinkUrl;
@@ -88,6 +89,13 @@ public class ContextMenuParams {
     }
 
     /**
+     * @return The URL associated with the main frame of the page that triggered the context menu.
+     */
+    public String getPageUrl() {
+        return mPageUrl;
+    }
+
+    /**
      * @return The link URL, if any.
      */
     public String getLinkUrl() {
@@ -157,9 +165,10 @@ public class ContextMenuParams {
         return mIsVideo;
     }
 
-    private ContextMenuParams(int mediaType, String linkUrl, String linkText,
+    private ContextMenuParams(int mediaType, String pageUrl, String linkUrl, String linkText,
             String unfilteredLinkUrl, String srcUrl, String selectionText, boolean isEditable,
             Referrer referrer) {
+        mPageUrl = pageUrl;
         mLinkUrl = linkUrl;
         mLinkText = linkText;
         mUnfilteredLinkUrl = unfilteredLinkUrl;
@@ -174,13 +183,13 @@ public class ContextMenuParams {
     }
 
     @CalledByNative
-    private static ContextMenuParams create(int mediaType, String linkUrl, String linkText,
-            String unfilteredLinkUrl, String srcUrl, String selectionText, boolean isEditable,
-            String sanitizedReferrer, int referrerPolicy) {
+    private static ContextMenuParams create(int mediaType, String pageUrl, String linkUrl,
+            String linkText, String unfilteredLinkUrl, String srcUrl, String selectionText,
+            boolean isEditable, String sanitizedReferrer, int referrerPolicy) {
         Referrer referrer = TextUtils.isEmpty(sanitizedReferrer)
                 ? null : new Referrer(sanitizedReferrer, referrerPolicy);
-        return new ContextMenuParams(mediaType, linkUrl, linkText, unfilteredLinkUrl, srcUrl,
-                selectionText, isEditable, referrer);
+        return new ContextMenuParams(mediaType, pageUrl, linkUrl, linkText, unfilteredLinkUrl,
+                srcUrl, selectionText, isEditable, referrer);
     }
 
     @CalledByNative