Fix composition key-code after switching to a new input field.

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

Index: content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java b/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
index bc92bd0cb0716549647c03cc525fbf757c653e38..f3122ff6037975d8c6acc7e4617cabf6fbc69962 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/ImeAdapter.java
@@ -435,6 +435,7 @@ public class ImeAdapter {
     }
 
     void finishComposingText() {
+        mLastComposeText = null;

[aurimas (slooooooooow), 2014/07/29 16:26:39]

I'm not 100% convinced that every keyboard will call finishComposingText(). Are
the any other calls that might need to reset mLastComposeText? Maybe when we
construct a new AdapterInputConnection?

[bcwhite, 2014/07/29 19:55:19]

Done.  Two additional resets added during initialization.

         if (mNativeImeAdapterAndroid == 0) return;
         nativeFinishComposingText(mNativeImeAdapterAndroid);
     }