Remove explicit keyword from multi-argument constructors

ui/gfx/gl/gl_surface_egl.h

 // 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.
 
 #ifndef UI_GFX_GL_GL_SURFACE_EGL_H_
 #define UI_GFX_GL_GL_SURFACE_EGL_H_
 #pragma once
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 31 matching lines @@
 protected:
   bool software_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GLSurfaceEGL);
 };
 
 // Encapsulates an EGL surface bound to a view.
 class NativeViewGLSurfaceEGL : public GLSurfaceEGL {
  public:
-  explicit NativeViewGLSurfaceEGL(bool software,
-                                  gfx::PluginWindowHandle window);
+  NativeViewGLSurfaceEGL(bool software, gfx::PluginWindowHandle window);
   virtual ~NativeViewGLSurfaceEGL();
 
   // Implement GLSurface.
   virtual bool Initialize();
   virtual void Destroy();
   virtual bool IsOffscreen();
   virtual bool SwapBuffers();
   virtual gfx::Size GetSize();
   virtual EGLSurface GetHandle();
 
  private:
   gfx::PluginWindowHandle window_;
   EGLSurface surface_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeViewGLSurfaceEGL);
 };
 
 // Encapsulates a pbuffer EGL surface.
 class PbufferGLSurfaceEGL : public GLSurfaceEGL {
  public:
-  explicit PbufferGLSurfaceEGL(bool software, const gfx::Size& size);
+  PbufferGLSurfaceEGL(bool software, const gfx::Size& size);
   virtual ~PbufferGLSurfaceEGL();
 
   // Implement GLSurface.
   virtual bool Initialize();
   virtual void Destroy();
   virtual bool IsOffscreen();
   virtual bool SwapBuffers();
   virtual gfx::Size GetSize();
   virtual EGLSurface GetHandle();
 
  private:
   gfx::Size size_;
   EGLSurface surface_;
 
   DISALLOW_COPY_AND_ASSIGN(PbufferGLSurfaceEGL);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GL_GL_SURFACE_EGL_H_