Replace GR_*_BUILD by their SK_BUILD_FOR_* equivalents.

BUG=None
TEST=None, no functional changes.
R=bsalomon@google.com, robertphillips@google.com

Author: tfarina@chromium.org

Review URL: https://chromiumcodereview.appspot.com/24253009

git-svn-id: http://skia.googlecode.com/svn/trunk@11457 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL.cpp b/src/gpu/gl/GrGpuGL.cpp
index 6f9a8ab..d1a7167 100644
--- a/src/gpu/gl/GrGpuGL.cpp
+++ b/src/gpu/gl/GrGpuGL.cpp
@@ -1604,9 +1604,9 @@
 #define SWAP_PER_DRAW 0
 
 #if SWAP_PER_DRAW
-    #if GR_MAC_BUILD
+    #if defined(SK_BUILD_FOR_MAC)
         #include <AGL/agl.h>
-    #elif GR_WIN32_BUILD
+    #elif defined(SK_BUILD_FOR_WIN32)
         #include <gl/GL.h>
         void SwapBuf() {
             DWORD procID = GetCurrentProcessId();
@@ -1645,11 +1645,11 @@
     }
 #if SWAP_PER_DRAW
     glFlush();
-    #if GR_MAC_BUILD
+    #if defined(SK_BUILD_FOR_MAC)
         aglSwapBuffers(aglGetCurrentContext());
         int set_a_break_pt_here = 9;
         aglSwapBuffers(aglGetCurrentContext());
-    #elif GR_WIN32_BUILD
+    #elif defined(SK_BUILD_FOR_WIN32)
         SwapBuf();
         int set_a_break_pt_here = 9;
         SwapBuf();