cc: Make images that can't possibly fit in cache not checker.

cc/tiles/image_controller.h

Index: cc/tiles/image_controller.h
diff --git a/cc/tiles/image_controller.h b/cc/tiles/image_controller.h
index ac79c82a3f6e5211e2682015beb0b987872a91c7..15cb6c471d6a5459bd64b5874de3475d43dd5994 100644
--- a/cc/tiles/image_controller.h
+++ b/cc/tiles/image_controller.h
@@ -56,6 +56,9 @@ class CC_EXPORT ImageController {
   virtual ImageDecodeRequestId QueueImageDecode(
       sk_sp<const SkImage> image,
       const ImageDecodedCallback& callback);
+  size_t image_cache_max_limit_bytes() const {
+    return image_cache_max_limit_bytes_;

[Khushal, 2017/04/28 00:12:53]

Could this just be cache_ ? cache_->GetMaximumMemoryLimit() : 0.

[vmpstr, 2017/04/28 17:18:30]

GetMaximumMemoryLimit is virtual so I just want to avoid repeated calls to it
for the case where this value is expected not to change very frequently at all.

+  }
 
  protected:
   scoped_refptr<base::SequencedTaskRunner> worker_task_runner_;
@@ -97,6 +100,7 @@ class CC_EXPORT ImageController {
   base::flat_map<ImageDecodeRequestId, DrawImage> requested_locked_images_;
 
   base::SequencedTaskRunner* origin_task_runner_ = nullptr;
+  size_t image_cache_max_limit_bytes_ = 0u;
 
   // The variables defined below this lock (aside from weak_ptr_factory_) can
   // only be accessed when the lock is acquired.