`#pragma once` for app, base, chrome, gfx, ipc, net, skia, views

BUG=50273
TEST=everything still builds, build is 10% faster on windows, same speed on mac/linux

TBR: erg

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@53716 0039d316-1c4b-4281-b951-d872f2087c98

56 files changed, 56 insertions, 0 deletions

diff --git a/chrome/browser/renderer_host/accelerated_surface_container_mac.h b/chrome/browser/renderer_host/accelerated_surface_container_mac.h
index c03c2801..a1e8983 100644
--- a/chrome/browser/renderer_host/accelerated_surface_container_mac.h
+++ b/chrome/browser/renderer_host/accelerated_surface_container_mac.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_GPU_PLUGIN_CONTAINER_MAC_H_
 #define CHROME_BROWSER_RENDERER_HOST_GPU_PLUGIN_CONTAINER_MAC_H_
+#pragma once
 
 // The "GPU plugin" is currently implemented as a special kind of
 // NPAPI plugin to provide high-performance on-screen 3D rendering for
diff --git a/chrome/browser/renderer_host/accelerated_surface_container_manager_mac.h b/chrome/browser/renderer_host/accelerated_surface_container_manager_mac.h
index bcb3c42..8ccd3ca 100644
--- a/chrome/browser/renderer_host/accelerated_surface_container_manager_mac.h
+++ b/chrome/browser/renderer_host/accelerated_surface_container_manager_mac.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_GPU_PLUGIN_CONTAINER_MANAGER_MAC_H_
 #define CHROME_BROWSER_RENDERER_HOST_GPU_PLUGIN_CONTAINER_MANAGER_MAC_H_
+#pragma once
 
 #include <OpenGL/OpenGL.h>
 #include <map>
diff --git a/chrome/browser/renderer_host/async_resource_handler.h b/chrome/browser/renderer_host/async_resource_handler.h
index 5442117..d499366 100644
--- a/chrome/browser/renderer_host/async_resource_handler.h
+++ b/chrome/browser/renderer_host/async_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/audio_renderer_host.h b/chrome/browser/renderer_host/audio_renderer_host.h
index cbb2ef9..260743b 100644
--- a/chrome/browser/renderer_host/audio_renderer_host.h
+++ b/chrome/browser/renderer_host/audio_renderer_host.h
@@ -56,6 +56,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_AUDIO_RENDERER_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_AUDIO_RENDERER_HOST_H_
+#pragma once
 
 #include <map>
 
diff --git a/chrome/browser/renderer_host/audio_sync_reader.h b/chrome/browser/renderer_host/audio_sync_reader.h
index 490115c..b1ce666 100644
--- a/chrome/browser/renderer_host/audio_sync_reader.h
+++ b/chrome/browser/renderer_host/audio_sync_reader.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_
 #define CHROME_BROWSER_RENDERER_HOST_AUDIO_SYNC_READER_
+#pragma once
 
 #include "base/file_descriptor_posix.h"
 #include "base/process.h"
diff --git a/chrome/browser/renderer_host/backing_store.h b/chrome/browser/renderer_host/backing_store.h
index 34739c8..699b59b 100644
--- a/chrome/browser/renderer_host/backing_store.h
+++ b/chrome/browser/renderer_host/backing_store.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_H_
 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_H_
+#pragma once
 
 #include <vector>
 
diff --git a/chrome/browser/renderer_host/backing_store_mac.h b/chrome/browser/renderer_host/backing_store_mac.h
index 3d9e793..0c1e4a7 100644
--- a/chrome/browser/renderer_host/backing_store_mac.h
+++ b/chrome/browser/renderer_host/backing_store_mac.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_
 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_
+#pragma once
 
 #include "base/basictypes.h"
 #include "base/scoped_cftyperef.h"
diff --git a/chrome/browser/renderer_host/backing_store_manager.h b/chrome/browser/renderer_host/backing_store_manager.h
index 660b08a..1ab78cc 100644
--- a/chrome/browser/renderer_host/backing_store_manager.h
+++ b/chrome/browser/renderer_host/backing_store_manager.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MANAGER_H_
 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MANAGER_H_
+#pragma once
 
 #include <vector>
 
diff --git a/chrome/browser/renderer_host/backing_store_proxy.h b/chrome/browser/renderer_host/backing_store_proxy.h
index 4d572b6..610f7ef 100644
--- a/chrome/browser/renderer_host/backing_store_proxy.h
+++ b/chrome/browser/renderer_host/backing_store_proxy.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
+#pragma once
 
 #include "base/basictypes.h"
 #include "chrome/browser/renderer_host/backing_store.h"
diff --git a/chrome/browser/renderer_host/backing_store_win.h b/chrome/browser/renderer_host/backing_store_win.h
index f280bca..221e0aa 100644
--- a/chrome/browser/renderer_host/backing_store_win.h
+++ b/chrome/browser/renderer_host/backing_store_win.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_WIN_H_
 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_WIN_H_
+#pragma once
 
 #include <windows.h>
 
diff --git a/chrome/browser/renderer_host/backing_store_x.h b/chrome/browser/renderer_host/backing_store_x.h
index 0570789..283c19f 100644
--- a/chrome/browser/renderer_host/backing_store_x.h
+++ b/chrome/browser/renderer_host/backing_store_x.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_X_H_
 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_X_H_
+#pragma once
 
 #include "app/x11_util.h"
 #include "base/basictypes.h"
diff --git a/chrome/browser/renderer_host/browser_render_process_host.h b/chrome/browser/renderer_host/browser_render_process_host.h
index 2a7f8b6..23de0315 100644
--- a/chrome/browser/renderer_host/browser_render_process_host.h
+++ b/chrome/browser/renderer_host/browser_render_process_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_H_
+#pragma once
 
 #include "build/build_config.h"
 
diff --git a/chrome/browser/renderer_host/buffered_resource_handler.h b/chrome/browser/renderer_host/buffered_resource_handler.h
index 27aac40..26bd7f8 100644
--- a/chrome/browser/renderer_host/buffered_resource_handler.h
+++ b/chrome/browser/renderer_host/buffered_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/cross_site_resource_handler.h b/chrome/browser/renderer_host/cross_site_resource_handler.h
index 1b7d4bc..aa731ca 100644
--- a/chrome/browser/renderer_host/cross_site_resource_handler.h
+++ b/chrome/browser/renderer_host/cross_site_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_CROSS_SITE_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_CROSS_SITE_RESOURCE_HANDLER_H_
+#pragma once
 
 #include "chrome/browser/renderer_host/resource_handler.h"
 #include "net/url_request/url_request_status.h"
diff --git a/chrome/browser/renderer_host/database_dispatcher_host.h b/chrome/browser/renderer_host/database_dispatcher_host.h
index 023e6d1..58b9b6e 100644
--- a/chrome/browser/renderer_host/database_dispatcher_host.h
+++ b/chrome/browser/renderer_host/database_dispatcher_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_DATABASE_DISPATCHER_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_DATABASE_DISPATCHER_HOST_H_
+#pragma once
 
 #include "base/hash_tables.h"
 #include "base/process.h"
diff --git a/chrome/browser/renderer_host/database_permission_request.h b/chrome/browser/renderer_host/database_permission_request.h
index 7ad09b5e..abe5d20 100644
--- a/chrome/browser/renderer_host/database_permission_request.h
+++ b/chrome/browser/renderer_host/database_permission_request.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_DATABASE_PERMISSION_REQUEST_H_
 #define CHROME_BROWSER_RENDERER_HOST_DATABASE_PERMISSION_REQUEST_H_
+#pragma once
 
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
diff --git a/chrome/browser/renderer_host/download_resource_handler.h b/chrome/browser/renderer_host/download_resource_handler.h
index aefa4a2..e982cfa 100644
--- a/chrome/browser/renderer_host/download_resource_handler.h
+++ b/chrome/browser/renderer_host/download_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/download_throttling_resource_handler.h b/chrome/browser/renderer_host/download_throttling_resource_handler.h
index e4f025b..308792f 100644
--- a/chrome/browser/renderer_host/download_throttling_resource_handler.h
+++ b/chrome/browser/renderer_host/download_throttling_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_THROTTLING_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_THROTTLING_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/global_request_id.h b/chrome/browser/renderer_host/global_request_id.h
index 89f8db5..eb9520b 100644
--- a/chrome/browser/renderer_host/global_request_id.h
+++ b/chrome/browser/renderer_host/global_request_id.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_GLOBAL_REQUEST_ID_H_
 #define CHROME_BROWSER_RENDERER_HOST_GLOBAL_REQUEST_ID_H_
+#pragma once
 
 // Uniquely identifies a URLRequest.
 struct GlobalRequestID {
diff --git a/chrome/browser/renderer_host/gpu_view_host.h b/chrome/browser/renderer_host/gpu_view_host.h
index 8d19e07..c37409c 100644
--- a/chrome/browser/renderer_host/gpu_view_host.h
+++ b/chrome/browser/renderer_host/gpu_view_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_GPU_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_GPU_VIEW_HOST_H_
+#pragma once
 
 #include "base/basictypes.h"
 #include "chrome/common/gpu_native_window_handle.h"
diff --git a/chrome/browser/renderer_host/gtk_im_context_wrapper.h b/chrome/browser/renderer_host/gtk_im_context_wrapper.h
index 27719b4..5d81968 100644
--- a/chrome/browser/renderer_host/gtk_im_context_wrapper.h
+++ b/chrome/browser/renderer_host/gtk_im_context_wrapper.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_GTK_IM_CONTEXT_WRAPPER_H_
 #define CHROME_BROWSER_RENDERER_HOST_GTK_IM_CONTEXT_WRAPPER_H_
+#pragma once
 
 #include <gdk/gdk.h>
 #include <pango/pango-attributes.h>
diff --git a/chrome/browser/renderer_host/gtk_key_bindings_handler.h b/chrome/browser/renderer_host/gtk_key_bindings_handler.h
index dcd4403..737a63d 100644
--- a/chrome/browser/renderer_host/gtk_key_bindings_handler.h
+++ b/chrome/browser/renderer_host/gtk_key_bindings_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_GTK_KEY_BINDINGS_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_GTK_KEY_BINDINGS_HANDLER_H_
+#pragma once
 
 #include <gtk/gtk.h>
 
diff --git a/chrome/browser/renderer_host/mock_render_process_host.h b/chrome/browser/renderer_host/mock_render_process_host.h
index 70ed985..0dc5e02 100644
--- a/chrome/browser/renderer_host/mock_render_process_host.h
+++ b/chrome/browser/renderer_host/mock_render_process_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_MOCK_RENDER_PROCESS_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_MOCK_RENDER_PROCESS_HOST_H_
+#pragma once
 
 #include "base/basictypes.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
diff --git a/chrome/browser/renderer_host/offline_resource_handler.h b/chrome/browser/renderer_host/offline_resource_handler.h
index 567e3a6..8c72ead 100644
--- a/chrome/browser/renderer_host/offline_resource_handler.h
+++ b/chrome/browser/renderer_host/offline_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_OFFLINE_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_OFFLINE_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/render_process_host.h b/chrome/browser/renderer_host/render_process_host.h
index ed8473b..82c3572 100644
--- a/chrome/browser/renderer_host/render_process_host.h
+++ b/chrome/browser/renderer_host/render_process_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_H_
+#pragma once
 
 #include <set>
 #include <string>
diff --git a/chrome/browser/renderer_host/render_sandbox_host_linux.h b/chrome/browser/renderer_host/render_sandbox_host_linux.h
index ef871b8..f8e1551 100644
--- a/chrome/browser/renderer_host/render_sandbox_host_linux.h
+++ b/chrome/browser/renderer_host/render_sandbox_host_linux.h
@@ -6,6 +6,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_SANDBOX_HOST_LINUX_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_SANDBOX_HOST_LINUX_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/render_view_host.h b/chrome/browser/renderer_host/render_view_host.h
index ab7c15e..1a41af1 100644
--- a/chrome/browser/renderer_host/render_view_host.h
+++ b/chrome/browser/renderer_host/render_view_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
+#pragma once
 
 #include <string>
 #include <vector>
diff --git a/chrome/browser/renderer_host/render_view_host_delegate.h b/chrome/browser/renderer_host/render_view_host_delegate.h
index ed08340..4f75d7e 100644
--- a/chrome/browser/renderer_host/render_view_host_delegate.h
+++ b/chrome/browser/renderer_host/render_view_host_delegate.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
+#pragma once
 
 #include <string>
 #include <vector>
diff --git a/chrome/browser/renderer_host/render_view_host_factory.h b/chrome/browser/renderer_host/render_view_host_factory.h
index 4adf23d..e228e67 100644
--- a/chrome/browser/renderer_host/render_view_host_factory.h
+++ b/chrome/browser/renderer_host/render_view_host_factory.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
+#pragma once
 
 #include "base/basictypes.h"
 
diff --git a/chrome/browser/renderer_host/render_view_host_notification_task.h b/chrome/browser/renderer_host/render_view_host_notification_task.h
index 1266922..9b8954c 100644
--- a/chrome/browser/renderer_host/render_view_host_notification_task.h
+++ b/chrome/browser/renderer_host/render_view_host_notification_task.h
@@ -9,6 +9,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_NOTIFICATION_TASK_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_NOTIFICATION_TASK_H_
+#pragma once
 
 #include "base/callback.h"
 #include "base/task.h"
diff --git a/chrome/browser/renderer_host/render_widget_helper.h b/chrome/browser/renderer_host/render_widget_helper.h
index d31bf66..a322349 100644
--- a/chrome/browser/renderer_host/render_widget_helper.h
+++ b/chrome/browser/renderer_host/render_widget_helper.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HELPER_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HELPER_H_
+#pragma once
 
 #include <map>
 
diff --git a/chrome/browser/renderer_host/render_widget_host.h b/chrome/browser/renderer_host/render_widget_host.h
index 26cabbc..5296516 100644
--- a/chrome/browser/renderer_host/render_widget_host.h
+++ b/chrome/browser/renderer_host/render_widget_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
+#pragma once
 
 #include <deque>
 #include <string>
diff --git a/chrome/browser/renderer_host/render_widget_host_painting_observer.h b/chrome/browser/renderer_host/render_widget_host_painting_observer.h
index 529d35f..9a58c37 100644
--- a/chrome/browser/renderer_host/render_widget_host_painting_observer.h
+++ b/chrome/browser/renderer_host/render_widget_host_painting_observer.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_PAINTING_OBSERVER_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_PAINTING_OBSERVER_H_
+#pragma once
 
 #include "app/surface/transport_dib.h"
 
diff --git a/chrome/browser/renderer_host/render_widget_host_view.h b/chrome/browser/renderer_host/render_widget_host_view.h
index 9a20af0..4c7a16f 100644
--- a/chrome/browser/renderer_host/render_widget_host_view.h
+++ b/chrome/browser/renderer_host/render_widget_host_view.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
+#pragma once
 
 #if defined(OS_MACOSX)
 #include <OpenGL/OpenGL.h>
diff --git a/chrome/browser/renderer_host/render_widget_host_view_gtk.h b/chrome/browser/renderer_host/render_widget_host_view_gtk.h
index f33cd55..14d8092 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_gtk.h
+++ b/chrome/browser/renderer_host/render_widget_host_view_gtk.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
+#pragma once
 
 #include <gdk/gdk.h>
 
diff --git a/chrome/browser/renderer_host/render_widget_host_view_mac.h b/chrome/browser/renderer_host/render_widget_host_view_mac.h
index 74f2092..af457b3 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_mac.h
+++ b/chrome/browser/renderer_host/render_widget_host_view_mac.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
+#pragma once
 
 #import <Cocoa/Cocoa.h>
 #import <QuartzCore/CALayer.h>
diff --git a/chrome/browser/renderer_host/render_widget_host_view_win.h b/chrome/browser/renderer_host/render_widget_host_view_win.h
index e0bc712..ff6228a 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_win.h
+++ b/chrome/browser/renderer_host/render_widget_host_view_win.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_WIN_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_WIN_H_
+#pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
diff --git a/chrome/browser/renderer_host/resource_dispatcher_host.h b/chrome/browser/renderer_host/resource_dispatcher_host.h
index b00747e..dff1934 100644
--- a/chrome/browser/renderer_host/resource_dispatcher_host.h
+++ b/chrome/browser/renderer_host/resource_dispatcher_host.h
@@ -11,6 +11,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_H_
+#pragma once
 
 #include <map>
 #include <string>
diff --git a/chrome/browser/renderer_host/resource_dispatcher_host_request_info.h b/chrome/browser/renderer_host/resource_dispatcher_host_request_info.h
index 2bafd0d..201351e 100644
--- a/chrome/browser/renderer_host/resource_dispatcher_host_request_info.h
+++ b/chrome/browser/renderer_host/resource_dispatcher_host_request_info.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_REQUEST_INFO_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_REQUEST_INFO_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/resource_handler.h b/chrome/browser/renderer_host/resource_handler.h
index ed99eaa..a03e50d 100644
--- a/chrome/browser/renderer_host/resource_handler.h
+++ b/chrome/browser/renderer_host/resource_handler.h
@@ -11,6 +11,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/resource_message_filter.h b/chrome/browser/renderer_host/resource_message_filter.h
index 72bf9b3..612e618 100644
--- a/chrome/browser/renderer_host/resource_message_filter.h
+++ b/chrome/browser/renderer_host/resource_message_filter.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_
+#pragma once
 
 #if defined(OS_WIN)
 #include <windows.h>
diff --git a/chrome/browser/renderer_host/resource_queue.h b/chrome/browser/renderer_host/resource_queue.h
index a853d56..bd71150 100644
--- a/chrome/browser/renderer_host/resource_queue.h
+++ b/chrome/browser/renderer_host/resource_queue.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_QUEUE_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_QUEUE_H_
+#pragma once
 
 #include <map>
 #include <set>
diff --git a/chrome/browser/renderer_host/resource_request_details.h b/chrome/browser/renderer_host/resource_request_details.h
index 5310b5b..6af9f85 100644
--- a/chrome/browser/renderer_host/resource_request_details.h
+++ b/chrome/browser/renderer_host/resource_request_details.h
@@ -8,6 +8,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_REQUEST_DETAILS_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_REQUEST_DETAILS_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/safe_browsing_resource_handler.h b/chrome/browser/renderer_host/safe_browsing_resource_handler.h
index b113635..cc7f821 100644
--- a/chrome/browser/renderer_host/safe_browsing_resource_handler.h
+++ b/chrome/browser/renderer_host/safe_browsing_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/save_file_resource_handler.h b/chrome/browser/renderer_host/save_file_resource_handler.h
index 436e4df..ecd8a93 100644
--- a/chrome/browser/renderer_host/save_file_resource_handler.h
+++ b/chrome/browser/renderer_host/save_file_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SAVE_FILE_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_SAVE_FILE_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/site_instance.h b/chrome/browser/renderer_host/site_instance.h
index 3be920c..171a699 100644
--- a/chrome/browser/renderer_host/site_instance.h
+++ b/chrome/browser/renderer_host/site_instance.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SITE_INSTANCE_H_
 #define CHROME_BROWSER_RENDERER_HOST_SITE_INSTANCE_H_
+#pragma once
 
 #include "chrome/browser/renderer_host/render_process_host.h"
 #include "chrome/common/notification_registrar.h"
diff --git a/chrome/browser/renderer_host/socket_stream_dispatcher_host.h b/chrome/browser/renderer_host/socket_stream_dispatcher_host.h
index 2fd8109..ed4c461 100644
--- a/chrome/browser/renderer_host/socket_stream_dispatcher_host.h
+++ b/chrome/browser/renderer_host/socket_stream_dispatcher_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SOCKET_STREAM_DISPATCHER_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_SOCKET_STREAM_DISPATCHER_HOST_H_
+#pragma once
 
 #include <vector>
 
diff --git a/chrome/browser/renderer_host/socket_stream_host.h b/chrome/browser/renderer_host/socket_stream_host.h
index b583700..ac1e073 100644
--- a/chrome/browser/renderer_host/socket_stream_host.h
+++ b/chrome/browser/renderer_host/socket_stream_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SOCKET_STREAM_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_SOCKET_STREAM_HOST_H_
+#pragma once
 
 #include <vector>
 
diff --git a/chrome/browser/renderer_host/sync_resource_handler.h b/chrome/browser/renderer_host/sync_resource_handler.h
index 683dd3d..9611f0b 100644
--- a/chrome/browser/renderer_host/sync_resource_handler.h
+++ b/chrome/browser/renderer_host/sync_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_SYNC_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>
 
diff --git a/chrome/browser/renderer_host/test/test_backing_store.h b/chrome/browser/renderer_host/test/test_backing_store.h
index 41deb4c..f9db76e 100644
--- a/chrome/browser/renderer_host/test/test_backing_store.h
+++ b/chrome/browser/renderer_host/test/test_backing_store.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_TEST_TEST_BACKING_STORE_H_
 #define CHROME_BROWSER_RENDERER_HOST_TEST_TEST_BACKING_STORE_H_
+#pragma once
 
 #include "base/basictypes.h"
 #include "chrome/browser/renderer_host/backing_store.h"
diff --git a/chrome/browser/renderer_host/test/test_render_view_host.h b/chrome/browser/renderer_host/test/test_render_view_host.h
index a2b1c99..82ff1c6 100644
--- a/chrome/browser/renderer_host/test/test_render_view_host.h
+++ b/chrome/browser/renderer_host/test/test_render_view_host.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_TEST_TEST_RENDER_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_TEST_TEST_RENDER_VIEW_HOST_H_
+#pragma once
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
diff --git a/chrome/browser/renderer_host/video_layer.h b/chrome/browser/renderer_host/video_layer.h
index 69f0702..a6907ce 100644
--- a/chrome/browser/renderer_host/video_layer.h
+++ b/chrome/browser/renderer_host/video_layer.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_H_
 #define CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_H_
+#pragma once
 
 #include "app/surface/transport_dib.h"
 #include "base/scoped_ptr.h"
diff --git a/chrome/browser/renderer_host/video_layer_proxy.h b/chrome/browser/renderer_host/video_layer_proxy.h
index 02b90ed..4a4cc71 100644
--- a/chrome/browser/renderer_host/video_layer_proxy.h
+++ b/chrome/browser/renderer_host/video_layer_proxy.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_PROXY_H_
 #define CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_PROXY_H_
+#pragma once
 
 #include "chrome/browser/renderer_host/video_layer.h"
 #include "ipc/ipc_channel.h"
diff --git a/chrome/browser/renderer_host/video_layer_x.h b/chrome/browser/renderer_host/video_layer_x.h
index 24bf316..3e00108 100644
--- a/chrome/browser/renderer_host/video_layer_x.h
+++ b/chrome/browser/renderer_host/video_layer_x.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_X_H_
 #define CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_X_H_
+#pragma once
 
 #include "app/x11_util.h"
 #include "chrome/browser/renderer_host/video_layer.h"
diff --git a/chrome/browser/renderer_host/web_cache_manager.h b/chrome/browser/renderer_host/web_cache_manager.h
index 61c6c1c..d1a1e26 100644
--- a/chrome/browser/renderer_host/web_cache_manager.h
+++ b/chrome/browser/renderer_host/web_cache_manager.h
@@ -7,6 +7,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_WEB_CACHE_MANAGER_H_
 #define CHROME_BROWSER_RENDERER_HOST_WEB_CACHE_MANAGER_H_
+#pragma once
 
 #include <map>
 #include <list>
diff --git a/chrome/browser/renderer_host/x509_user_cert_resource_handler.h b/chrome/browser/renderer_host/x509_user_cert_resource_handler.h
index 7f6189a..b62ddbf 100644
--- a/chrome/browser/renderer_host/x509_user_cert_resource_handler.h
+++ b/chrome/browser/renderer_host/x509_user_cert_resource_handler.h
@@ -4,6 +4,7 @@
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_X509_USER_CERT_RESOURCE_HANDLER_H_
 #define CHROME_BROWSER_RENDERER_HOST_X509_USER_CERT_RESOURCE_HANDLER_H_
+#pragma once
 
 #include <string>