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authorpkotwicz@chromium.org <pkotwicz@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-01-14 18:59:55 +0000
committerpkotwicz@chromium.org <pkotwicz@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-01-14 18:59:55 +0000
commit5565316246b58c1168fb10e9439fc903ebb8faa6 (patch)
tree7f497b09f9fa21b3ad9ff10f5f3091d29d159c11 /base/memory/ref_counted_memory.cc
parent1dcf97bb29b98046aa9856545ae12755ee91c6da (diff)
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Avoid sending notifications when the bitmap data in the history backend is replaced with bitmap data which is byte for byte equal.
Bug=168223 Test=HistoryBackendTest.* Manual: see comment #7 in bug Review URL: https://chromiumcodereview.appspot.com/11830007 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@176691 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/memory/ref_counted_memory.cc')
-rw-r--r--base/memory/ref_counted_memory.cc7
1 files changed, 7 insertions, 0 deletions
diff --git a/base/memory/ref_counted_memory.cc b/base/memory/ref_counted_memory.cc
index 9bcde32..b048a6e 100644
--- a/base/memory/ref_counted_memory.cc
+++ b/base/memory/ref_counted_memory.cc
@@ -8,6 +8,13 @@
namespace base {
+bool RefCountedMemory::Equals(
+ const scoped_refptr<RefCountedMemory>& other) const {
+ return other.get() &&
+ size() == other->size() &&
+ (memcmp(front(), other->front(), size()) == 0);
+}
+
RefCountedMemory::RefCountedMemory() {}
RefCountedMemory::~RefCountedMemory() {}