Minor cleanups to includes and fwd decls in core/css/resolver

Minor cleanups to includes and fwd decls in core/css/resolver

Remove some unneeded includes/fwd decls in core/css/resolver, and add
some needed ones that were transitively included. IWYU suggests
adding a heap more includes, but since we probably won't have any
automated IWYU checks any time soon these will probably just end up
as unused includes again.

BUG=242216
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=154412

[kenneth.r.christiansen, 2013-07-17 14:03:27]

lgtm, nice clean up

[commit-bot: I haz the power, 2013-07-17 16:00:10]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/timloh@chromium.org/19591002/2001

[commit-bot: I haz the power, 2013-07-17 16:00:30]

Failed to apply patch for Source/core/css/resolver/MatchResult.cpp:
While running patch -p1 --forward --force --no-backup-if-mismatch;
  patching file Source/core/css/resolver/MatchResult.cpp
  Hunk #1 FAILED at 30.
  1 out of 1 hunk FAILED -- saving rejects to file
Source/core/css/resolver/MatchResult.cpp.rej

Patch:       Source/core/css/resolver/MatchResult.cpp
Index: Source/core/css/resolver/MatchResult.cpp
diff --git a/Source/core/css/resolver/MatchResult.cpp
b/Source/core/css/resolver/MatchResult.cpp
index
128f073bf31ba82c4cb0266146f4ada5f6623490..e5a47c072b38396ddc057bd5a191225f377c35d2
100644
--- a/Source/core/css/resolver/MatchResult.cpp
+++ b/Source/core/css/resolver/MatchResult.cpp
@@ -30,7 +30,6 @@
 #include "core/css/resolver/MatchResult.h"
 
 #include "core/css/StylePropertySet.h"
-#include "core/css/StyleRule.h"
 #include "core/dom/WebCoreMemoryInstrumentation.h"
 #include "wtf/MemoryInstrumentationHashMap.h"
 #include "wtf/MemoryInstrumentationVector.h"

[tfarina, 2013-07-17 16:12:07]

Please, don't forget to fill BUG=242216

[commit-bot: I haz the power, 2013-07-17 16:18:46]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/timloh@chromium.org/19591002/13001

[eseidel, 2013-07-17 16:39:59]

lgtm

[eseidel, 2013-07-17 16:40:14]

Thanks so much for doing this!

[commit-bot: I haz the power, 2013-07-17 18:48:18]

Change committed as 154412