Fix warning as error in Renderer.cpp.
Review URL: https://codereview.appspot.com/7420046

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1981 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/Renderer.cpp b/src/libGLESv2/renderer/Renderer.cpp
index 965b6e7..8fd3425 100644
--- a/src/libGLESv2/renderer/Renderer.cpp
+++ b/src/libGLESv2/renderer/Renderer.cpp
@@ -47,7 +47,7 @@
     // Find a D3DCompiler module that had already been loaded based on a predefined list of versions.
     static TCHAR* d3dCompilerNames[] = ANGLE_PRELOADED_D3DCOMPILER_MODULE_NAMES;
 
-    for (int i = 0; i < ArraySize(d3dCompilerNames); ++i)
+    for (size_t i = 0; i < ArraySize(d3dCompilerNames); ++i)
     {
         if (GetModuleHandleEx(0, d3dCompilerNames[i], &mD3dCompilerModule))
         {