Revert of Browser Side Text Input State Tracking for OOPIF.

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index 09859f14b9b45b64abc0037c0cf6380f8675d44a..0581389eeafec3d02437941b8a9ca4e42a776c66 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -1010,23 +1010,23 @@
   // like Chrome does on Windows, call |UpdateCursor()| here.
 }
 
-void RenderWidgetHostViewMac::UpdateInputMethodIfNecessary(
-    bool text_input_state_changed) {
-  if (!text_input_state_changed)
-    return;
-
-  if (HasFocus()) {
-    SetTextInputActive(true);
-
-    // Let AppKit cache the new input context to make IMEs happy.
-    // See http://crbug.com/73039.
-    [NSApp updateWindows];
+void RenderWidgetHostViewMac::TextInputStateChanged(
+const ViewHostMsg_TextInputState_Params& params) {
+  if (text_input_type_ != params.type
+      || can_compose_inline_ != params.can_compose_inline) {
+    text_input_type_ = params.type;
+    can_compose_inline_ = params.can_compose_inline;
+    if (HasFocus()) {
+      SetTextInputActive(true);
+
+      // Let AppKit cache the new input context to make IMEs happy.
+      // See http://crbug.com/73039.
+      [NSApp updateWindows];
 
 #ifndef __LP64__
-    UseInputWindow(TSMGetActiveDocument(), !render_widget_host_->delegate()
-                                                ->GetTextInputState()
-                                                ->can_compose_inline);
+      UseInputWindow(TSMGetActiveDocument(), !can_compose_inline_);
 #endif
+    }
   }
 }
 
@@ -1082,10 +1082,6 @@
   // Make sure none of our observers send events for us to process after
   // we release render_widget_host_.
   NotifyObserversAboutShutdown();
-
-  // 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();
 
   // We get this call just before |render_widget_host_| deletes
   // itself.  But we are owned by |cocoa_view_|, which may be retained