cc: Use highp precision for texture coords if available and needed

cc/resources/picture_layer_tiling_set_unittest.cc

 // Copyright 2012 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/resources/picture_layer_tiling_set.h"
 
 #include <vector>
 
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/resource_provider.h"
@@ skipping 45 matching lines @@
  public:
   void runTest(
       int num_tilings,
       float min_scale,
       float scale_increment,
       float ideal_contents_scale,
       float expected_scale) {
     scoped_ptr<FakeOutputSurface> output_surface =
         FakeOutputSurface::Create3d();
     scoped_ptr<ResourceProvider> resource_provider =
-        ResourceProvider::Create(output_surface.get());
+        ResourceProvider::Create(output_surface.get(), 0);
 
     FakePictureLayerTilingClient client;
     client.SetTileSize(gfx::Size(256, 256));
     PictureLayerTilingSet set(&client);
 
     gfx::Size layer_bounds(1000, 800);
     set.SetLayerBounds(layer_bounds);
 
     float scale = min_scale;
     for (int i = 0; i < num_tilings; ++i, scale += scale_increment) {
@@ skipping 67 matching lines @@
 TEST_F(PictureLayerTilingSetTestWithResources, ManyTilings_Equal) {
   runTest(10, 1.f, 1.f, 5.f, 5.f);
 }
 
 TEST_F(PictureLayerTilingSetTestWithResources, ManyTilings_NotEqual) {
   runTest(10, 1.f, 1.f, 4.5f, 5.f);
 }
 
 }  // namespace
 }  // namespace cc