[Mac] Create transparent cursor when given empty custom data.

chrome/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2011 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 <QuartzCore/QuartzCore.h>
 
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/mac/scoped_cftyperef.h"
 #import "base/mac/scoped_nsautorelease_pool.h"
 #include "base/metrics/histogram.h"
 #import "base/memory/scoped_nsobject.h"
 #include "base/string_util.h"
 #include "base/sys_info.h"
 #include "base/sys_string_conversions.h"
-#import "chrome/app/breakpad_mac.h"
 #include "chrome/browser/browser_trial.h"
 #import "chrome/browser/renderer_host/accelerated_plugin_view_mac.h"
 #import "chrome/browser/renderer_host/text_input_client_mac.h"
 #include "chrome/browser/spellchecker_platform_engine.h"
 #import "chrome/browser/ui/cocoa/rwhvm_editcommand_helper.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/spellcheck_messages.h"
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/plugin_process_host.h"
 #include "content/browser/renderer_host/backing_store_mac.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_view_host_observer.h"
 #include "content/browser/renderer_host/render_widget_host.h"
 #include "content/common/edit_command.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/native_web_keyboard_event.h"
 #include "content/common/plugin_messages.h"
 #include "content/common/view_messages.h"
 #include "skia/ext/platform_canvas.h"
 #import "third_party/mozilla/ComplexTextInputPanel.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/mac/WebInputEventFactory.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebCursorInfo.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/surface/io_surface_support_mac.h"
 #include "webkit/glue/webaccessibility.h"
 #include "webkit/plugins/npapi/webplugin.h"
 
 using WebKit::WebInputEvent;
 using WebKit::WebInputEventFactory;
 using WebKit::WebMouseEvent;
 using WebKit::WebMouseWheelEvent;
@@ skipping 417 matching lines @@
 
 void RenderWidgetHostViewMac::UpdateCursorIfNecessary() {
   // Do something special (as Win Chromium does) for arrow cursor while loading
   // a page? TODO(avi): decide
   // Can we synchronize to the event stream? Switch to -[NSWindow
   // mouseLocationOutsideOfEventStream] if we cannot. TODO(avi): test and see
   NSEvent* event = [[cocoa_view_ window] currentEvent];
   if ([event window] != [cocoa_view_ window])
     return;
 
-  // TODO(shess): Store additional information in breakpad dumps for
-  // debugging http://crbug.com/73356 .
-  scoped_ptr<ScopedCrashKey> key;
-  if (current_cursor_.IsCustom()) {
-    NSString* kCrashKey = @"custom-cursor-size";
-    const gfx::Size size = current_cursor_.custom_size();
-    NSString* crashValue =
-        [NSString stringWithFormat:@"{%d, %d}", size.width(), size.height()];
-    key.reset(new ScopedCrashKey(kCrashKey, crashValue));
-  }
-
   NSCursor* ns_cursor = current_cursor_.GetCursor();
   [ns_cursor set];
 }
 
 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 |UpdateCursorIfNecessary()| here.
 }
 
@@ skipping 2097 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end