Revert of Browser Side Text Input State Tracking for OOPIF.

content/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 #include <stdint.h>
@@ skipping 992 matching lines @@
   WebCursor web_cursor = cursor;
   [cocoa_view_ updateCursor:web_cursor.GetNativeCursor()];
 }
 
 void RenderWidgetHostViewMac::SetIsLoading(bool is_loading) {
   is_loading_ = is_loading;
   // If we ever decide to show the waiting cursor while the page is loading
   // like Chrome does on Windows, call |UpdateCursor()| here.
 }
 
-void RenderWidgetHostViewMac::UpdateInputMethodIfNecessary(
-    bool text_input_state_changed) {
-  if (!text_input_state_changed)
-    return;
+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);
 
-  if (HasFocus()) {
-    SetTextInputActive(true);
-
-    // Let AppKit cache the new input context to make IMEs happy.
-    // See http://crbug.com/73039.
-    [NSApp updateWindows];
+      // 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
+    }
   }
 }
 
 void RenderWidgetHostViewMac::ImeCancelComposition() {
   [cocoa_view_ cancelComposition];
 }
 
 void RenderWidgetHostViewMac::ImeCompositionRangeChanged(
     const gfx::Range& range,
     const std::vector<gfx::Rect>& character_bounds) {
@@ skipping 36 matching lines @@
   pepper_fullscreen_window_.autorelease();
 
   // Delete the delegated frame state, which will reach back into
   // render_widget_host_.
   ShutdownBrowserCompositor();
 
   // 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
   // by some other code.  Examples are WebContentsViewMac's
   // |latent_focus_view_| and TabWindowController's
   // |cachedContentView_|.
   render_widget_host_ = NULL;
 }
 
 // Called from the renderer to tell us what the tooltip text should be. It
 // calls us frequently so we need to cache the value to prevent doing a lot
@@ skipping 2299 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end