Fix an issue that external protocol in subframes are not handled on Android

chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationParams.java

Index: chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationParams.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationParams.java b/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationParams.java
index f894ce63314fb14568f05afecd2b40f56c020741..f0313b631774acdb4800fa209fbbb84a8114fa40 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationParams.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationParams.java
@@ -44,10 +44,13 @@ public class ExternalNavigationParams {
     /** Whether this navigation happens in background tab. */
     private final boolean mIsBackgroundTabNavigation;
 
+    /** Whether this navigation happens in main frame. */
+    private final boolean mIsMainFrame;
+
     private ExternalNavigationParams(String url, boolean isIncognito, String referrerUrl,
             int pageTransition, boolean isRedirect, boolean appMustBeInForeground,
             TabRedirectHandler redirectHandler, TransitionPageHelper transitionPageHelper, Tab tab,
-            boolean openInNewTab, boolean isBackgroundTabNavigation) {
+            boolean openInNewTab, boolean isBackgroundTabNavigation, boolean isMainFrame) {
         mUrl = url;
         mIsIncognito = isIncognito;
         mPageTransition = pageTransition;
@@ -59,6 +62,7 @@ public class ExternalNavigationParams {
         mTab = tab;
         mOpenInNewTab = openInNewTab;
         mIsBackgroundTabNavigation = isBackgroundTabNavigation;
+        mIsMainFrame = isMainFrame;
     }
 
     /** @return The URL to potentially open externally. */
@@ -119,6 +123,11 @@ public class ExternalNavigationParams {
         return mIsBackgroundTabNavigation;
     }
 
+    /** @return Whether this navigation happens in main frame. */
+    public boolean isMainFrame() {
+        return mIsMainFrame;
+    }
+
     /** The builder for {@link ExternalNavigationParams} objects. */
     public static class Builder {
         /** The URL which we are navigating to. */
@@ -153,6 +162,9 @@ public class ExternalNavigationParams {
         /** Whether this navigation happens in background tab. */
         private boolean mIsBackgroundTabNavigation;
 
+        /** Whether this navigation happens in main frame. */
+        private boolean mIsMainFrame;
+
         public Builder(String url, boolean isIncognito) {
             mUrl = url;
             mIsIncognito = isIncognito;
@@ -203,11 +215,18 @@ public class ExternalNavigationParams {
             return this;
         }
 
+        /** Sets whether this navigation happens in main frame. */
+        public Builder setIsMainFrame(boolean v) {
+            mIsMainFrame = v;
+            return this;
+        }
+
         /** @return A fully constructed {@link ExternalNavigationParams} object. */
         public ExternalNavigationParams build() {
             return new ExternalNavigationParams(mUrl, mIsIncognito, mReferrerUrl, mPageTransition,
                     mIsRedirect, mApplicationMustBeInForeground, mRedirectHandler,
-                    mTransitionPageHelper, mTab, mOpenInNewTab, mIsBackgroundTabNavigation);
+                    mTransitionPageHelper, mTab, mOpenInNewTab, mIsBackgroundTabNavigation,
+                    mIsMainFrame);
         }
     }
 }