Moved selection of I915 hack out of the YUV shader.

client/deps/glbench/src/yuvtest.cc

 // Copyright (c) 2010 The Chromium OS 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 <stdio.h>
 #include <sys/mman.h>
 
 #include "base/logging.h"
 
 #include "main.h"
@@ skipping 25 matching lines @@
   char *yuv_to_rgb_vertex = static_cast<char *>(
       MmapFile(vertex, &size_vertex));
   char *yuv_to_rgb_fragment = static_cast<char *>(
       MmapFile(fragment, &size_fragment));
   GLuint program = 0;
 
   if (!yuv_to_rgb_fragment || !yuv_to_rgb_vertex)
     goto done;
 
   {
-    program = InitShaderProgram(yuv_to_rgb_vertex, yuv_to_rgb_fragment);
+#if defined(I915_WORKAROUND)
+    const char* header = "#define I915_WORKAROUND 1\n";
+#else
+    const char* header = NULL;
+#endif
+    program = InitShaderProgramWithHeader(header, yuv_to_rgb_vertex,
+                                          yuv_to_rgb_fragment);
 
     int imageWidthUniform = glGetUniformLocation(program, "imageWidth");
     int imageHeightUniform = glGetUniformLocation(program, "imageHeight");
     int textureSampler = glGetUniformLocation(program, "textureSampler");
     int evenLinesSampler = glGetUniformLocation(program, "paritySampler");
 
     glUniform1f(imageWidthUniform, width);
     glUniform1f(imageHeightUniform, height);
     glUniform1i(textureSampler, 0);
     glUniform1i(evenLinesSampler, 1);
@@ skipping 74 matching lines @@
 
   return true;
 }
 
 
 TestBase* GetYuvToRgbTest(int type, const char* name) {
   return new YuvToRgbTest(type, name);
 }
 
 } // namespace glbench