Making callbacks in Android ChildProcessLauncher generic.

content/public/android/BUILD.gn

Index: content/public/android/BUILD.gn
diff --git a/content/public/android/BUILD.gn b/content/public/android/BUILD.gn
index d9ed24d69efd9f8450469c6cf8d7f13d0c15b9e0..79ce645e51ef251f7d638a304960288aaf15af05 100644
--- a/content/public/android/BUILD.gn
+++ b/content/public/android/BUILD.gn
@@ -9,8 +9,8 @@ android_aidl("common_aidl") {
   interface_file = "java/src/org/chromium/content/common/common.aidl"
   import_include = [ "java/src" ]
   sources = [
-    "java/src/org/chromium/content/common/IChildProcessCallback.aidl",
     "java/src/org/chromium/content/common/IChildProcessService.aidl",
+    "java/src/org/chromium/content/common/IContentChildProcessCallback.aidl",
   ]
 }
 
@@ -83,6 +83,7 @@ android_library("content_java") {
     "java/src/org/chromium/content/app/ChildProcessServiceImpl.java",
     "java/src/org/chromium/content/app/ChromiumLinkerParams.java",
     "java/src/org/chromium/content/app/ContentApplication.java",
+    "java/src/org/chromium/content/browser/ContentChildProcessCallback.java",
     "java/src/org/chromium/content/app/ContentMain.java",
     "java/src/org/chromium/content/app/KillChildUncaughtExceptionHandler.java",
     "java/src/org/chromium/content/app/PrivilegedProcessService.java",
@@ -328,6 +329,7 @@ generate_jni("content_jni_headers") {
     "java/src/org/chromium/content/browser/BackgroundSyncNetworkObserver.java",
     "java/src/org/chromium/content/browser/BrowserStartupController.java",
     "java/src/org/chromium/content/browser/ChildProcessLauncher.java",
+    "java/src/org/chromium/content/browser/ContentChildProcessCallback.java",
     "java/src/org/chromium/content/browser/ContentFeatureList.java",
     "java/src/org/chromium/content/browser/ContentVideoView.java",
     "java/src/org/chromium/content/browser/ContentViewCore.java",