DO NOT SUBMIT: Debug logging for crbug.com/714771

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 <Carbon/Carbon.h>
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
@@ skipping 898 matching lines @@
   // returns nullptr.
   if (!widgetHost)
     return;
 
   // Set the monitor state based on the text input focus state.
   const bool has_focus = HasFocus();
   const TextInputState* state = text_input_manager->GetTextInputState();
   bool need_monitor_composition =
       has_focus && state && state->type != ui::TEXT_INPUT_TYPE_NONE;
 
+  LOG(ERROR) << "OnUpdateTextInputStateCalled(): RequestCompositionUpdates("
+             << need_monitor_composition
+             << ", \""
+             << WebContents::FromRenderViewHost(RenderViewHost::From(widgetHost))->GetLastCommittedURL().spec()
+             << "\")";
+
   widgetHost->RequestCompositionUpdates(false /* immediate_request */,
                                         need_monitor_composition);
 
   if (has_focus) {
     SetTextInputActive(true);
 
     // Let AppKit cache the new input context to make IMEs happy.
     // See http://crbug.com/73039.
     [NSApp updateWindows];
 
@@ skipping 2577 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