🙅 Bind a WebAPK to its "host" browser.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandler.java
index 52c1d77c6bca0324dc1ee0e3473135ffd84ae5af..a21169df389f523d51a9f91a00cf22cad328fbd3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandler.java
@@ -62,8 +62,8 @@ public class ExternalNavigationHandler {
         /* We should override the URL loading and launch an intent to Minted APK. */
         OVERRIDE_WITH_INTENT_TO_MINTED_APK,
         /* We are in the Minted runtime, and we should override the URL loading and launch
-         *  an intent to Chrome.*/
-        OVERRIDE_WITH_INTENT_BACKTO_CHROME,
+         *  an intent to the host browser.*/

[Xi Han, 2016/04/15 17:33:04]

It is better to explain the "host browser" is the one that installs the WebAPK.
E.g, "launch an intent to the host browser that installed the WebAPK".

+        OVERRIDE_WITH_INTENT_BACKTO_HOST_BROWSER,
         /* We shouldn't override the URL loading. */
         NO_OVERRIDE,
     }
@@ -232,7 +232,7 @@ public class ExternalNavigationHandler {
                     suppressIntentFilter = mDelegate.countSpecializedHandlers(resolvingInfos) == 1;
                 } else {
                     defaultOverrideUrlLoadingResult =
-                            OverrideUrlLoadingResult.OVERRIDE_WITH_INTENT_BACKTO_CHROME;
+                            OverrideUrlLoadingResult.OVERRIDE_WITH_INTENT_BACKTO_HOST_BROWSER;
                 }
             }
         }