Send correct key-codes when doing composition events instead of always 0.

content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java

Index: content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java b/content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java
index de9f9cce77fdea84ce6f403d65421ea9443a6b78..71fcd01e42e344ff11d23d163cfc85aa44de2432 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/AdapterInputConnection.java
@@ -8,7 +8,6 @@ import android.os.SystemClock;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.Selection;
-import android.text.TextUtils;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.View;
@@ -46,6 +45,9 @@ public class AdapterInputConnection extends BaseInputConnection {
     private int mLastUpdateCompositionEnd = INVALID_COMPOSITION;
 
     @VisibleForTesting
+    public int mUpdateStateCalls = 0;
+
+    @VisibleForTesting
     AdapterInputConnection(View view, ImeAdapter imeAdapter, Editable editable,
             EditorInfo outAttrs) {
         super(view, true);
@@ -139,6 +141,8 @@ public class AdapterInputConnection extends BaseInputConnection {
             Log.w(TAG, "updateState [" + text + "] [" + selectionStart + " " + selectionEnd + "] ["
                     + compositionStart + " " + compositionEnd + "] [" + isNonImeChange + "]");
         }
+        mUpdateStateCalls++;
+
         // If this update is from the IME, no further state modification is necessary because the
         // state should have been updated already by the IM framework directly.
         if (!isNonImeChange) return;
@@ -213,7 +217,6 @@ public class AdapterInputConnection extends BaseInputConnection {
     @Override
     public boolean setComposingText(CharSequence text, int newCursorPosition) {
         if (DEBUG) Log.w(TAG, "setComposingText [" + text + "] [" + newCursorPosition + "]");
-        if (maybePerformEmptyCompositionWorkaround(text)) return true;
         super.setComposingText(text, newCursorPosition);
         updateSelectionIfRequired();
         return mImeAdapter.checkCompositionQueueAndCallNative(text, newCursorPosition, false);
@@ -225,7 +228,6 @@ public class AdapterInputConnection extends BaseInputConnection {
     @Override
     public boolean commitText(CharSequence text, int newCursorPosition) {
         if (DEBUG) Log.w(TAG, "commitText [" + text + "] [" + newCursorPosition + "]");
-        if (maybePerformEmptyCompositionWorkaround(text)) return true;
         super.commitText(text, newCursorPosition);
         updateSelectionIfRequired();
         return mImeAdapter.checkCompositionQueueAndCallNative(text, newCursorPosition,
@@ -460,7 +462,12 @@ public class AdapterInputConnection extends BaseInputConnection {
             super.setComposingRegion(a, b);
         }
         updateSelectionIfRequired();
-        return mImeAdapter.setComposingRegion(a, b);
+
+        CharSequence regionText = null;
+        if (b > a) {
+            regionText = mEditable.subSequence(start, end);
+        }
+        return mImeAdapter.setComposingRegion(regionText, a, b);
     }
 
     boolean isActive() {
@@ -471,33 +478,6 @@ public class AdapterInputConnection extends BaseInputConnection {
         return mImeAdapter.getInputMethodManagerWrapper();
     }
 
-    /**
-     * This method works around the issue crbug.com/373934 where Blink does not cancel
-     * the composition when we send a commit with the empty text.
-     *
-     * TODO(aurimas) Remove this once crbug.com/373934 is fixed.
-     *
-     * @param text Text that software keyboard requested to commit.
-     * @return Whether the workaround was performed.
-     */
-    private boolean maybePerformEmptyCompositionWorkaround(CharSequence text) {
-        int selectionStart = Selection.getSelectionStart(mEditable);
-        int selectionEnd = Selection.getSelectionEnd(mEditable);
-        int compositionStart = getComposingSpanStart(mEditable);
-        int compositionEnd = getComposingSpanEnd(mEditable);
-        if (TextUtils.isEmpty(text) && (selectionStart == selectionEnd)
-                && compositionStart != INVALID_COMPOSITION
-                && compositionEnd != INVALID_COMPOSITION) {
-            beginBatchEdit();
-            finishComposingText();
-            int selection = Selection.getSelectionStart(mEditable);
-            deleteSurroundingText(selection - compositionStart, selection - compositionEnd);
-            endBatchEdit();
-            return true;
-        }
-        return false;
-    }
-
     @VisibleForTesting
     static class ImeState {
         public final String text;