Suppress a couple more memory leaks found by Dr. Memory

Also widen the existing suppression
BUG=74413,75247,92166
TBR=bruening
Review URL: http://codereview.chromium.org/7598036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@95996 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/drmemory/suppressions.txt

@@ -728,6 +728,7 @@ LEAK
 
 # http://crbug.com/74413
 LEAK
+...
 *!operator new
 *!net::HttpAuthHandlerFactory::CreateDefault
 
@@ -741,6 +742,12 @@ LEAK
 *!operator new
 *!disk_cache::BackendImpl::NewEntry
 
+# http://crbug.com/75247
+LEAK
+...
+*!operator new
+*!AutofillDownloadTestHelper::AutofillDownloadTestHelper
+
 # http://crbug.com/76354
 LEAK
 ...
@@ -876,5 +883,11 @@ LEAK
 ...
 *!BookmarkEditorView::Init
 
+# http://crbug.com/92166
+LEAK
+...
+*!operator new
+*!views::NativeWidgetWin::OnCreate
+
 # Empty line at EOF - workaround for
 # http://code.google.com/p/drmemory/issues/detail?id=41