Fix a crash occuring during the destruction of TextInputManager on Android.

content/browser/renderer_host/text_input_manager.h

Index: content/browser/renderer_host/text_input_manager.h
diff --git a/content/browser/renderer_host/text_input_manager.h b/content/browser/renderer_host/text_input_manager.h
index 0700d3241e1c584a5eb564b37cf3225e06741e34..eae15aa67be85f5aae776d01d6287e3d481ecf9d 100644
--- a/content/browser/renderer_host/text_input_manager.h
+++ b/content/browser/renderer_host/text_input_manager.h
@@ -37,7 +37,12 @@ class CONTENT_EXPORT TextInputManager {
     // Called when a view has called UpdateTextInputState on TextInputManager.
     // If the call has led to a change in TextInputState, |did_update_state| is
     // true. In some plaforms, we need this update even when the state has not
-    // changed (e.g., Aura for updating IME).
+    // changed (e.g., Aura for updating IME). Also note that |updated_view| is
+    // the view which has most recently received an update in TextInputState.
+    // |updated_view| should not be used to obtain any IME state since this
+    // this observer method might have been called in response to unregistering

[Charlie Reis, 2016/11/30 00:05:23]

nit: this this

[EhsanK, 2016/11/30 00:34:25]

Acknowledged.

+    // the |active_view_| from TextInputManager in which case all the the |view|

[Charlie Reis, 2016/11/30 00:05:23]

nit: the the
nit: What does "all the |view| is not registered" mean?  Rephrase?

[EhsanK, 2016/11/30 00:34:25]

Thanks. I rephrased this part.

+    // is not registered anymore.
     virtual void OnUpdateTextInputStateCalled(
         TextInputManager* text_input_manager,
         RenderWidgetHostViewBase* updated_view,