- Change ALLOW_UNUSED to ALLOW_UNUSED_TYPE and ALLOW_UNUSED_LOCAL to match Chromium.

- Windows: d3dcompiler_46.dll changed to d3dcompiler_47.dll due to 8.1 SDK update (issue #1484).
- Windows: Fix `local variable is initialized but not referenced` warning with Release build (issue #1484).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1962 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

CMakeLists.txt.in

@@ -437,7 +437,7 @@ if(OS_WINDOWS)
   # List of CEF binary files.
   set(CEF_BINARY_FILES
     d3dcompiler_43.dll
-    d3dcompiler_46.dll
+    d3dcompiler_47.dll
     ffmpegsumo.dll
     libcef.dll
     libEGL.dll

include/base/cef_build.h

@@ -160,18 +160,26 @@
 #endif
 #endif  // WARN_UNUSED_RESULT
 
+// Annotate a typedef or function indicating it's ok if it's not used.
+// Use like:
+//   typedef Foo Bar ALLOW_UNUSED_TYPE;
+#ifndef ALLOW_UNUSED_TYPE
+#if defined(COMPILER_GCC)
+#define ALLOW_UNUSED_TYPE __attribute__((unused))
+#else
+#define ALLOW_UNUSED_TYPE
+#endif
+#endif  // ALLOW_UNUSED_TYPE
+
 // Annotate a variable indicating it's ok if the variable is not used.
 // (Typically used to silence a compiler warning when the assignment
 // is important for some other reason.)
 // Use like:
-//   int x ALLOW_UNUSED = ...;
-#ifndef ALLOW_UNUSED
-#if defined(COMPILER_GCC)
-#define ALLOW_UNUSED __attribute__((unused))
-#else
-#define ALLOW_UNUSED
+//   int x = ...;
+//   ALLOW_UNUSED_LOCAL(x);
+#ifndef ALLOW_UNUSED_LOCAL
+#define ALLOW_UNUSED_LOCAL(x) false ? (void)x : (void)0
 #endif
-#endif  // ALLOW_UNUSED
 
 #endif  // !BUILDING_CEF_SHARED
 

include/base/cef_macros.h

@@ -165,7 +165,8 @@ struct CompileAssert {
 }  // namespace cef
 
 #define COMPILE_ASSERT(expr, msg) \
-  typedef cef::CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1] ALLOW_UNUSED
+  typedef cef::CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1] \
+      ALLOW_UNUSED_TYPE
 
 // Implementation details of COMPILE_ASSERT:
 //

libcef/browser/menu_creator_runner_linux.cc

@@ -6,15 +6,11 @@
 #include "libcef/browser/browser_host_impl.h"
 #include "libcef/browser/window_x11.h"
 
+#include "base/compiler_specific.h"
 #include "base/strings/string_util.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/point.h"
 
-// Used to silence warnings about unused variables.
-#if !defined(UNUSED)
-#define UNUSED(x) ((void)(x))
-#endif
-
 CefMenuCreatorRunnerLinux::CefMenuCreatorRunnerLinux() {
 }
 
@@ -59,7 +55,7 @@ bool CefMenuCreatorRunnerLinux::RunContextMenu(CefMenuCreator* manager) {
                        NULL, gfx::Rect(screen_point, gfx::Size()),
                        views::MENU_ANCHOR_TOPRIGHT,
                        ui::MENU_SOURCE_NONE);
-  UNUSED(result);
+  ALLOW_UNUSED_LOCAL(result);
 
   return true;
 }

libcef/browser/render_widget_host_view_osr_mac.mm

@@ -10,12 +10,9 @@
 #include "libcef/browser/browser_host_impl.h"
 #include "libcef/browser/text_input_client_osr_mac.h"
 
+#include "base/compiler_specific.h"
 #include "ui/events/latency_info.h"
 
-#if !defined(UNUSED)
-#define UNUSED(x)	((void)(x))	/* to avoid warnings */
-#endif
-
 namespace {
 
 CefTextInputClientOSRMac* GetInputClientFromContext(
@@ -310,7 +307,7 @@ void CefRenderWidgetHostViewOSR::PlatformDestroyCompositorWidget() {
 
   // Compositor is owned by and will be freed by BrowserCompositorMac.
   ui::Compositor* compositor = compositor_.release();
-  UNUSED(compositor);
+  ALLOW_UNUSED_LOCAL(compositor);
 
   [window_ close];
   window_ = nil;

tests/cefclient/cefclient_osr_widget_win.cpp

@@ -7,6 +7,7 @@
 #include <windowsx.h>
 
 #include "include/base/cef_bind.h"
+#include "include/base/cef_build.h"
 #include "include/wrapper/cef_closure_task.h"
 #include "cefclient/resource.h"
 
@@ -18,6 +19,7 @@ class ScopedGLContext {
     : hdc_(hdc),
       swap_buffers_(swap_buffers) {
     BOOL result = wglMakeCurrent(hdc, hglrc);
+    ALLOW_UNUSED_LOCAL(result);
     DCHECK(result);
   }
   ~ScopedGLContext() {
@@ -352,6 +354,7 @@ void OSRWindow::DisableGL() {
   if (IsWindow(hWnd_)) {
     // wglDeleteContext will make the context not current before deleting it.
     BOOL result = wglDeleteContext(hRC_);
+    ALLOW_UNUSED_LOCAL(result);
     DCHECK(result);
     ReleaseDC(hWnd_, hDC_);
   }

tools/distrib/win/README.redistrib.txt

@@ -44,7 +44,7 @@ Optional components:
 
 * Angle and Direct3D support
     d3dcompiler_43.dll (required for Windows XP)
-    d3dcompiler_46.dll (required for Windows Vista and newer)
+    d3dcompiler_47.dll (required for Windows Vista and newer)
     libEGL.dll
     libGLESv2.dll
   Note: Without these components HTML5 accelerated content like 2D canvas, 3D

tools/make_distrib.py

@@ -418,7 +418,7 @@ if mode == 'standard':
 
 if platform == 'windows':
   binaries = [
-    'd3dcompiler_46.dll',
+    'd3dcompiler_47.dll',
     'ffmpegsumo.dll',
     'libcef.dll',
     'libEGL.dll',