clippy: Iterate without calling .iter()

See:
https://rust-lang.github.io/rust-clippy/master/index.html#explicit_iter_loop
https://rust-lang.github.io/rust-clippy/master/index.html#explicit_into_iter_loop

Before:

    for element in slice.iter() {...}

After:

    for element in slice {...}

TEST=grep -r '\.iter() {'
TEST=grep -r '\.iter_mut() {'
TEST=grep -r '\.into_iter() {'
TEST=cargo check --all-features
TEST=local kokoro

Change-Id: I27f0df7cfa1064b2c8b162cba263513926a433a9
Reviewed-on: https://chromium-review.googlesource.com/1568525
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/gpu_renderer/src/command_buffer.rs b/gpu_renderer/src/command_buffer.rs
index 1f5b98a..b6c7005 100644
--- a/gpu_renderer/src/command_buffer.rs
+++ b/gpu_renderer/src/command_buffer.rs
@@ -89,7 +89,7 @@ impl CommandBufferBuilder {
     pub fn e_clear(&mut self, buffers: u32, color: [f32; 4], depth: f64, stencil: u32) {
         self.push_cmd(VIRGL_CCMD_CLEAR, 0, VIRGL_OBJ_CLEAR_SIZE);
         self.push(buffers);
-        for &c in color.iter() {
+        for c in &color {
             self.push(c.to_bits())
         }
         self.push_qw(depth.to_bits());
diff --git a/gpu_renderer/src/lib.rs b/gpu_renderer/src/lib.rs
index caa9f8e..8d03673 100644
--- a/gpu_renderer/src/lib.rs
+++ b/gpu_renderer/src/lib.rs
@@ -792,7 +792,7 @@ impl Resource {
         }
         self.detach_backing();
         self.backing_mem = Some(mem.clone());
-        for &(addr, len) in iovecs.iter() {
+        for &(addr, len) in iovecs {
             // Unwrap will not panic because we already checked the slices.
             let slice = mem.get_slice(addr.offset(), len as u64).unwrap();
             self.backing_iovecs.push(VirglVec {