Allow one-copy task tile worker pool to use compressed textures.

cc/resources/resource_pool.cc

Index: cc/resources/resource_pool.cc
diff --git a/cc/resources/resource_pool.cc b/cc/resources/resource_pool.cc
index 778ddbe853ca87dc4f194643d7c44bf62c6788bb..ca07646707367b6d915a570ac2d31313f620bac6 100644
--- a/cc/resources/resource_pool.cc
+++ b/cc/resources/resource_pool.cc
@@ -90,8 +90,16 @@ ResourcePool::~ResourcePool() {
   DCHECK_EQ(0u, total_resource_count_);
 }
 
-Resource* ResourcePool::AcquireResource(const gfx::Size& size,
+Resource* ResourcePool::AcquireResource(const gfx::Size& desired_size,
                                         ResourceFormat format) {
+  gfx::Size size = desired_size;
+  if (IsResourceFormatCompressed(format) &&
+      (size.width() % 4 != 0 || size.height() % 4 != 0)) {
+    // Round the size up to the nearest multiple of four.
+    size.SetSize(4 * std::ceil(static_cast<float>(size.width()) / 4),
+                 4 * std::ceil(static_cast<float>(size.height()) / 4));
+  }
+
   // Finding resources in |unused_resources_| from MRU to LRU direction, touches
   // LRU resources only if needed, which increases possibility of expiring more
   // LRU resources within kResourceExpirationDelayMs.