Revert of Browser Side Text Input State Tracking for OOPIF.

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 46113c71a41378de43bc01db2ce14fbdba0d22a1..acb9d446490d808e0669d3f9aa1abc3456dcc0e6 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -652,19 +652,22 @@
   return reinterpret_cast<intptr_t>(&ime_adapter_android_);
 }
 
-void RenderWidgetHostViewAndroid::UpdateInputMethodIfNecessary(
-    bool text_input_state_changed) {
-  DCHECK(text_input_state_changed);
+void RenderWidgetHostViewAndroid::TextInputStateChanged(
+    const ViewHostMsg_TextInputState_Params& params) {
+  if (params.is_non_ime_change) {
+    // Sends an acknowledgement to the renderer of a processed IME event.
+    host_->Send(new InputMsg_ImeEventAck(host_->GetRoutingID()));
+  }
+
   if (!content_view_core_)
     return;
 
-  const TextInputState* state = host_->delegate()->GetTextInputState();
-
   content_view_core_->UpdateImeAdapter(
-      GetNativeImeAdapter(), static_cast<int>(state->type), state->flags,
-      state->value, state->selection_start, state->selection_end,
-      state->composition_start, state->composition_end,
-      state->show_ime_if_needed, state->is_non_ime_change);
+      GetNativeImeAdapter(),
+      static_cast<int>(params.type), params.flags,
+      params.value, params.selection_start, params.selection_end,
+      params.composition_start, params.composition_end,
+      params.show_ime_if_needed, params.is_non_ime_change);
 }
 
 void RenderWidgetHostViewAndroid::UpdateBackgroundColor(SkColor color) {
@@ -809,10 +812,6 @@
     surface_id_ = cc::SurfaceId();
   }
   surface_factory_.reset();
-
-  // The WebContentsImpl should be notified about us so that it will not hold
-  // an invalid text input state which was due to active text on this view.
-  NotifyHostDelegateAboutShutdown();
 
   // The RenderWidgetHost's destruction led here, so don't call it.
   host_ = NULL;