[android] Show keyboard switcher icon.

Show the keyboard switcher icon on the right edge of the navigation bar
when two or more IMEs are enabled and a physical keyboard is connected.

BUG=452543

Review URL: https://codereview.chromium.org/879403003

Cr-Commit-Position: refs/heads/master@{#313660}

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

@@ -280,11 +280,10 @@ public class ImeAdapter {
 
     private void showKeyboard() {
         mIsShowWithoutHideOutstanding = true;
+        mInputMethodManagerWrapper.showSoftInput(
+                mViewEmbedder.getAttachedView(), 0, mViewEmbedder.getNewShowKeyboardReceiver());
         if (mViewEmbedder.getAttachedView().getResources().getConfiguration().keyboard
-                == Configuration.KEYBOARD_NOKEYS) {
-            mInputMethodManagerWrapper.showSoftInput(mViewEmbedder.getAttachedView(), 0,
-                    mViewEmbedder.getNewShowKeyboardReceiver());
-        } else {
+                != Configuration.KEYBOARD_NOKEYS) {
             mViewEmbedder.onKeyboardBoundsUnchanged();
         }
     }