linux: don't always print dlopen errors from LoadNativeLibrary

ui/gfx/gl/gl_implementation_win.cc

 // 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 <vector>
 
 #include "base/base_paths.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/native_library.h"
@@ skipping 25 matching lines @@
 
   switch (implementation) {
     case kGLImplementationOSMesaGL: {
       FilePath module_path;
       if (!PathService::Get(base::DIR_MODULE, &module_path)) {
         LOG(ERROR) << "PathService::Get failed.";
         return false;
       }
 
       base::NativeLibrary library = base::LoadNativeLibrary(
-          module_path.Append(L"osmesa.dll"));
+          module_path.Append(L"osmesa.dll"), NULL);
       if (!library) {
         VLOG(1) << "osmesa.dll not found";
         return false;
       }
 
       GLGetProcAddressProc get_proc_address =
           reinterpret_cast<GLGetProcAddressProc>(
               base::GetFunctionPointerFromNativeLibrary(
                   library, "OSMesaGetProcAddress"));
       if (!get_proc_address) {
@@ skipping 12 matching lines @@
     }
     case kGLImplementationEGLGLES2: {
       FilePath module_path;
       if (!PathService::Get(base::DIR_MODULE, &module_path))
         return false;
 
       // Load libglesv2.dll before libegl.dll because the latter is dependent on
       // the former and if there is another version of libglesv2.dll in the dll
       // search path, it will get loaded.
       base::NativeLibrary gles_library = base::LoadNativeLibrary(
-          module_path.Append(L"libglesv2.dll"));
+          module_path.Append(L"libglesv2.dll"), NULL);
       if (!gles_library) {
         VLOG(1) << "libglesv2.dll not found";
         return false;
       }
 
       // When using EGL, first try eglGetProcAddress and then Windows
       // GetProcAddress on both the EGL and GLES2 DLLs.
       base::NativeLibrary egl_library = base::LoadNativeLibrary(
-          module_path.Append(L"libegl.dll"));
+          module_path.Append(L"libegl.dll"), NULL);
       if (!egl_library) {
         VLOG(1) << "libegl.dll not found.";
         base::UnloadNativeLibrary(gles_library);
         return false;
       }
 
       GLGetProcAddressProc get_proc_address =
           reinterpret_cast<GLGetProcAddressProc>(
               base::GetFunctionPointerFromNativeLibrary(
                   egl_library, "eglGetProcAddress"));
@@ skipping 15 matching lines @@
       // These two functions take single precision float rather than double
       // precision float parameters in GLES.
       ::gfx::g_glClearDepth = MarshalClearDepthToClearDepthf;
       ::gfx::g_glDepthRange = MarshalDepthRangeToDepthRangef;
       break;
     }
     case kGLImplementationDesktopGL: {
       // When using Windows OpenGL, first try wglGetProcAddress and then
       // Windows GetProcAddress.
       base::NativeLibrary library = base::LoadNativeLibrary(
-          FilePath(L"opengl32.dll"));
+          FilePath(L"opengl32.dll"), NULL);
       if (!library) {
         VLOG(1) << "opengl32.dll not found";
         return false;
       }
 
       GLGetProcAddressProc get_proc_address =
           reinterpret_cast<GLGetProcAddressProc>(
               base::GetFunctionPointerFromNativeLibrary(
                   library, "wglGetProcAddress"));
       if (!get_proc_address) {
@@ skipping 24 matching lines @@
 }
 
 void InitializeDebugGLBindings() {
   InitializeDebugGLBindingsEGL();
   InitializeDebugGLBindingsGL();
   InitializeDebugGLBindingsOSMESA();
   InitializeDebugGLBindingsWGL();
 }
 
 }  // namespace gfx