Roll skia to r2034 (and add new gl bindings)

ui/gfx/gl/gl_bindings_skia_in_process.cc

Index: ui/gfx/gl/gl_bindings_skia_in_process.cc
===================================================================
--- ui/gfx/gl/gl_bindings_skia_in_process.cc	(revision 95237)
+++ ui/gfx/gl/gl_bindings_skia_in_process.cc	(working copy)
@@ -164,6 +164,14 @@
   glDrawArrays(mode, first, count);
 }
 
+GLvoid StubGLDrawBuffer(GLenum mode) {
+  glDrawBuffer(mode);
+}
+
+GLvoid StubGLDrawBuffers(GLsizei n, const GLenum* bufs) {
+  glDrawBuffersARB(n, bufs);
+}
+
 GLvoid StubGLDrawElements(GLenum mode, GLsizei count, GLenum type,
                           const void* indices) {
   glDrawElements(mode, count, type, indices);
@@ -280,6 +288,10 @@
   glPixelStorei(pname, param);
 }
 
+GLvoid StubGLReadBuffer(GLenum src) {
+  glReadBuffer(src);
+}
+
 GLvoid StubGLReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
                         GLenum format, GLenum type, void* pixels) {
   glReadPixels(x, y, width, height, format, type, pixels);
@@ -519,6 +531,8 @@
       NULL,  // glDisableClientState
       StubGLDisableVertexAttribArray,
       StubGLDrawArrays,
+      StubGLDrawBuffer,
+      StubGLDrawBuffers,
       StubGLDrawElements,
       StubGLEnable,
       NULL,  // glEnableClientState
@@ -542,6 +556,7 @@
       NULL,  // glMatrixMode
       StubGLPixelStorei,
       NULL,  // glPointSize
+      StubGLReadBuffer,
       StubGLReadPixels,
       StubGLScissor,
       NULL,  // glShadeModel