cc: Make the ScopedPtrVector and ScopedPtrDeque containers act like STL vector and deque.

cc/layer_impl.cc

Index: cc/layer_impl.cc
diff --git a/cc/layer_impl.cc b/cc/layer_impl.cc
index 4927e7484d5040e6064261f47d6d179104a7c6c5..237d20cdc5a7979872537442d69d5d6c0ccae409 100644
--- a/cc/layer_impl.cc
+++ b/cc/layer_impl.cc
@@ -4,6 +4,8 @@
 
 #include "cc/layer_impl.h"
 
+#include <algorithm>
+
 #include "base/debug/trace_event.h"
 #include "base/stringprintf.h"
 #include "cc/debug_border_draw_quad.h"
@@ -76,7 +78,7 @@ LayerImpl::~LayerImpl()
 void LayerImpl::addChild(scoped_ptr<LayerImpl> child)
 {
     child->setParent(this);
-    m_children.append(child.Pass());
+    m_children.push_back(child.Pass());
 }
 
 void LayerImpl::removeFromParent()
@@ -87,18 +89,13 @@ void LayerImpl::removeFromParent()
     LayerImpl* parent = m_parent;
     m_parent = 0;
 
-    for (size_t i = 0; i < parent->m_children.size(); ++i) {
-        if (parent->m_children[i] == this) {
-            parent->m_children.remove(i);
-            return;
-        }
-    }
+    parent->m_children.erase(std::find(parent->m_children.begin(), parent->m_children.end(), this));
 }
 
 void LayerImpl::removeAllChildren()
 {
     while (m_children.size())
-        m_children[0]->removeFromParent();
+        m_children.front()->removeFromParent();
 }
 
 void LayerImpl::clearChildList()