Initialize our quads to zero before we gl_->BufferData() with them.

cc/output/static_geometry_binding.cc

 // Copyright 2015 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.
 
 #include "cc/output/static_geometry_binding.h"
 
 #include "cc/output/gl_renderer.h"  // For the GLC() macro.
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "ui/gfx/geometry/rect_f.h"
 
@@ skipping 22 matching lines @@
     GeometryBindingVertex v2 = {
         {quad_vertex_rect.right(), quad_vertex_rect.y(), 0.0f},
         {1.0f, 0.0f},
         i * 4.0f + 2.0f};
     GeometryBindingVertex v3 = {
         {quad_vertex_rect.right(), quad_vertex_rect.bottom(), 0.0f},
         {1.0f, 1.0f},
         i * 4.0f + 3.0f};
     GeometryBindingQuad x = {v0, v1, v2, v3};
     quads[i] = x;
-    GeometryBindingQuadIndex y = {{static_cast<uint16>(0 + 4 * i),
-                                   static_cast<uint16>(1 + 4 * i),
-                                   static_cast<uint16>(2 + 4 * i),
-                                   static_cast<uint16>(3 + 4 * i),
-                                   static_cast<uint16>(0 + 4 * i),
-                                   static_cast<uint16>(2 + 4 * i)}};
+    GeometryBindingQuadIndex y = {static_cast<uint16>(0 + 4 * i),

[enne (OOO), 2015/02/27 22:12:07]

Use direct or copy initialization, not list initialization.

+                                  static_cast<uint16>(1 + 4 * i),
+                                  static_cast<uint16>(2 + 4 * i),
+                                  static_cast<uint16>(3 + 4 * i),
+                                  static_cast<uint16>(0 + 4 * i),
+                                  static_cast<uint16>(2 + 4 * i)};
     quad_indices[i] = y;
   }
 
   GLC(gl_, gl_->GenBuffers(1, &quad_vertices_vbo_));
   GLC(gl_, gl_->GenBuffers(1, &quad_elements_vbo_));
 
   GLC(gl_, gl_->BindBuffer(GL_ARRAY_BUFFER, quad_vertices_vbo_));
   GLC(gl_, gl_->BufferData(GL_ARRAY_BUFFER, sizeof(GeometryBindingQuad) * 8,
                            quads, GL_STATIC_DRAW));
 
   GLC(gl_, gl_->BindBuffer(GL_ELEMENT_ARRAY_BUFFER, quad_elements_vbo_));
   GLC(gl_, gl_->BufferData(GL_ELEMENT_ARRAY_BUFFER,
                            sizeof(GeometryBindingQuadIndex) * 8, &quad_indices,
                            GL_STATIC_DRAW));
 }
 
 StaticGeometryBinding::~StaticGeometryBinding() {
   gl_->DeleteBuffers(1, &quad_vertices_vbo_);
   gl_->DeleteBuffers(1, &quad_elements_vbo_);
 }
 
 void StaticGeometryBinding::PrepareForDraw() {
   SetupGLContext(gl_, quad_elements_vbo_, quad_vertices_vbo_);
 }
 
 }  // namespace cc