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 8a76fb4921037071b8404de0713e5365af8c1cfe..ed0a40971f88dd9249b4b39ae7ae271c954e3d2b 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -1009,23 +1009,23 @@ void RenderWidgetHostViewMac::SetIsLoading(bool is_loading) {
   // like Chrome does on Windows, call |UpdateCursor()| here.
 }
 
-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];
+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];
 
 #ifndef __LP64__
-      UseInputWindow(TSMGetActiveDocument(), !can_compose_inline_);
+    UseInputWindow(TSMGetActiveDocument(), !render_widget_host_->delegate()
+                                                ->GetTextInputState()
+                                                .can_compose_inline);
 #endif
-    }
   }
 }
 
@@ -1082,6 +1082,10 @@ void RenderWidgetHostViewMac::Destroy() {
   // 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
   // by some other code.  Examples are WebContentsViewMac's