Let embedder provide select action mode

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 f397b7aba062a4bf35d70f1ec768c8581d527052..71af2e290341bb5bed01900ccfbf1a54def6b67a 100644
--- a/content/public/android/BUILD.gn
+++ b/content/public/android/BUILD.gn
@@ -120,7 +120,7 @@ android_library("content_java") {
     "java/src/org/chromium/content/browser/ContextualSearchClient.java",
     "java/src/org/chromium/content/browser/DeviceSensors.java",
     "java/src/org/chromium/content/browser/DeviceUtils.java",
-    "java/src/org/chromium/content/browser/FloatingWebActionModeCallback.java",
+    "java/src/org/chromium/content/browser/FloatingActionModeCallback.java",
     "java/src/org/chromium/content/browser/InterfaceRegistrarImpl.java",
     "java/src/org/chromium/content/browser/InterstitialPageDelegateAndroid.java",
     "java/src/org/chromium/content/browser/JavascriptInterface.java",
@@ -138,12 +138,11 @@ android_library("content_java") {
     "java/src/org/chromium/content/browser/RenderCoordinates.java",
     "java/src/org/chromium/content/browser/SPenSupport.java",
     "java/src/org/chromium/content/browser/ScreenOrientationProvider.java",
+    "java/src/org/chromium/content/browser/SelectionPopupController.java",
     "java/src/org/chromium/content/browser/SmartClipProvider.java",
     "java/src/org/chromium/content/browser/SpeechRecognition.java",
     "java/src/org/chromium/content/browser/TracingControllerAndroid.java",
     "java/src/org/chromium/content/browser/ViewPositionObserver.java",
-    "java/src/org/chromium/content/browser/WebActionMode.java",
-    "java/src/org/chromium/content/browser/WebActionModeCallback.java",
     "java/src/org/chromium/content/browser/WindowAndroidProvider.java",
     "java/src/org/chromium/content/browser/WindowAndroidChangedObserver.java",
     "java/src/org/chromium/content/browser/accessibility/BrowserAccessibilityManager.java",
@@ -194,6 +193,7 @@ android_library("content_java") {
     "java/src/org/chromium/content/common/SurfaceWrapper.java",
     "java/src/org/chromium/content_public/browser/AccessibilitySnapshotCallback.java",
     "java/src/org/chromium/content_public/browser/AccessibilitySnapshotNode.java",
+    "java/src/org/chromium/content_public/browser/ActionModeCallbackHelper.java",
     "java/src/org/chromium/content_public/browser/ContentBitmapCallback.java",
     "java/src/org/chromium/content_public/browser/GestureStateListener.java",
     "java/src/org/chromium/content_public/browser/ImageDownloadCallback.java",