cc: Rename too long identifier

The linter gets mad at this when anybody changes this file because the
line is too long, but there's no way to format this properly and not
wrap, so just make the test name shorter.

Bug: 805798
Change-Id: I41e052843d721c8c50becdb5425a376503b8889a
Reviewed-on: https://chromium-review.googlesource.com/c/1336558Reviewed-by: vmpstr <vmpstr@chromium.org>
Commit-Queue: enne <enne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608453}

cc/trees/layer_tree_host_unittest.cc

@@ -3670,11 +3670,10 @@ SINGLE_AND_MULTI_THREAD_TEST_F(
 // LayerTreeHostTestDeferCommitInsideBeginMainFrameWithCommitAfter when
 // we re-create the concept of defer commit when not defering main frame
 // updates.
-class LayerTreeHostTestDeferMainFrameUpdateInsideBeginMainFrameWithCommitAfter
+class LayerTreeHostTestDeferInsideBeginMainFrameWithCommitAfter
     : public LayerTreeHostTest {
  public:
-  LayerTreeHostTestDeferMainFrameUpdateInsideBeginMainFrameWithCommitAfter() =
-      default;
+  LayerTreeHostTestDeferInsideBeginMainFrameWithCommitAfter() = default;
 
   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
@@ -3692,7 +3691,7 @@ class LayerTreeHostTestDeferMainFrameUpdateInsideBeginMainFrameWithCommitAfter
         FROM_HERE,
         // Unretained because the test doesn't end before this runs.
         base::BindOnce(
-            &LayerTreeHostTestDeferMainFrameUpdateInsideBeginMainFrameWithCommitAfter::
+            &LayerTreeHostTestDeferInsideBeginMainFrameWithCommitAfter::
                 AllowCommits,
             base::Unretained(this)),
         base::TimeDelta::FromMilliseconds(100));
@@ -3731,7 +3730,7 @@ class LayerTreeHostTestDeferMainFrameUpdateInsideBeginMainFrameWithCommitAfter
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
-    LayerTreeHostTestDeferMainFrameUpdateInsideBeginMainFrameWithCommitAfter);
+    LayerTreeHostTestDeferInsideBeginMainFrameWithCommitAfter);
 
 // This verifies that animate_only BeginFrames only run animation/layout
 // updates, i.e. abort commits after the paint stage and only request layer