cc: Allow TEXTURE_RECTANGLE_ARB to be used for tile textures.

cc/resources/image_raster_worker_pool.cc

Index: cc/resources/image_raster_worker_pool.cc
diff --git a/cc/resources/image_raster_worker_pool.cc b/cc/resources/image_raster_worker_pool.cc
index 8c3a06b7d1ee61608f4bc1d59b6f90f8df29854a..90572ab417dedc02c00d3d082ce2ca94643e3449 100644
--- a/cc/resources/image_raster_worker_pool.cc
+++ b/cc/resources/image_raster_worker_pool.cc
@@ -57,8 +57,11 @@ class ImageWorkerPoolTaskImpl : public internal::WorkerPoolTask {
 }  // namespace
 
 ImageRasterWorkerPool::ImageRasterWorkerPool(
-    ResourceProvider* resource_provider, size_t num_threads)
+    ResourceProvider* resource_provider,
+    size_t num_threads,
+    GLenum texture_target)
     : RasterWorkerPool(resource_provider, num_threads),
+      texture_target_(texture_target),
       raster_tasks_pending_(false),
       raster_tasks_required_for_activation_pending_(false) {
 }
@@ -154,6 +157,10 @@ void ImageRasterWorkerPool::ScheduleTasks(RasterTask::Queue* queue) {
       "state", TracedValue::FromValue(StateAsValue().release()));
 }
 
+GLenum ImageRasterWorkerPool::GetResourceTarget() const {
+  return texture_target_;
+}
+
 ResourceFormat ImageRasterWorkerPool::GetResourceFormat() const {
   return resource_provider()->best_texture_format();
 }