Plumbing for browser process to access text surrounding selection.

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index 272c8cf75a5ce108af0b820b4a10c136840648f5..82a60b9f75e8c9d8c440afbd13e638bfcd60aa37 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -2471,6 +2471,11 @@ public class ContentViewCore
         attachImeAdapter();
     }
 
+    @CalledByNative
+    private void onTextSurroundingSelectionResponse(
+            String content, int startOffset, int endOffset) {
+    }
+
     /**
      * Attaches the native ImeAdapter object to the java ImeAdapter to allow communication via JNI.
      */
@@ -3217,4 +3222,7 @@ public class ContentViewCore
 
     private native void nativeExtractSmartClipData(long nativeContentViewCoreImpl,
             int x, int y, int w, int h);
+
+    private native void nativeTextSurroundingSelectionRequest(
+            long nativeContentViewCoreImpl, int maxLength);
 }