Replace most LOG/CHECK statements with DLOG/DCHECK statements in base.

[ Reland of 107042 http://codereview.chromium.org/8368009 ]

I tried hard not to change CHECKs that had side effects. I kept fatal checks
that seemed security or debugging-info (in crash reports) sensitive, and ones
that seems particularly well-conceived.
Review URL: http://codereview.chromium.org/8341026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107434 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/debug/debugger.cc b/base/debug/debugger.cc
index 3777fa1..a0d8a92 100644
--- a/base/debug/debugger.cc
+++ b/base/debug/debugger.cc
@@ -15,8 +15,8 @@
 #if defined(OS_ANDROID)
   // The pid from which we know which process to attach to are not output by
   // android ddms, so we have to print it out explicitly.
-  LOG(INFO) << "DebugUtil::WaitForDebugger(pid=" << static_cast<int>(getpid())
-      << ")";
+  DLOG(INFO) << "DebugUtil::WaitForDebugger(pid=" << static_cast<int>(getpid())
+             << ")";
 #endif
   for (int i = 0; i < wait_seconds * 10; ++i) {
     if (BeingDebugged()) {