Moving BindingManager and ChildProcessConnection to base/.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index aa1225f43ceb2d12c672037f715dfd81f584a4bd..12c75c74c7412fc0aba5ab08e5fe488d4b07bed0 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -2539,8 +2539,14 @@ if (is_android) {
       "android/java/src/org/chromium/base/metrics/RecordUserAction.java",
       "android/java/src/org/chromium/base/metrics/StatisticsRecorderAndroid.java",
       "android/java/src/org/chromium/base/multidex/ChromiumMultiDexInstaller.java",
+      "android/java/src/org/chromium/base/process_launcher/BaseChildProcessConnection.java",
+      "android/java/src/org/chromium/base/process_launcher/BindingManager.java",
+      "android/java/src/org/chromium/base/process_launcher/BindingManagerImpl.java",
+      "android/java/src/org/chromium/base/process_launcher/ChildProcessConstants.java",
       "android/java/src/org/chromium/base/process_launcher/ChildProcessCreationParams.java",
       "android/java/src/org/chromium/base/process_launcher/FileDescriptorInfo.java",
+      "android/java/src/org/chromium/base/process_launcher/ImportantChildProcessConnection.java",
+      "android/java/src/org/chromium/base/process_launcher/ManagedChildProcessConnection.java",
     ]
 
     # New versions of BuildConfig.java and NativeLibraries.java
@@ -2644,6 +2650,7 @@ if (is_android) {
       "android/junit/src/org/chromium/base/LogTest.java",
       "android/junit/src/org/chromium/base/NonThreadSafeTest.java",
       "android/junit/src/org/chromium/base/PromiseTest.java",
+      "android/junit/src/org/chromium/base/process_launcher/BindingManagerImplTest.java",
       "test/android/junit/src/org/chromium/base/test/SetUpStatementTest.java",
       "test/android/junit/src/org/chromium/base/test/util/DisableIfTest.java",
       "test/android/junit/src/org/chromium/base/test/util/MinAndroidSdkLevelSkipCheckTest.java",