Refactor LinuxDumper and MinidumpWriter.

This patch is part of a bigger patch that helps merging the breakpad code
with the modified version in Chromium OS.

Specifically, this patch makes the following changes:
1. Add two convenient methods, back() and empty(), to the wasteful_vector
   class.
2. Refactor the LinuxDumper class such that it can later be splitted into
   a base class and two derived classes, one uses the current ptrace
   implementation and one uses a core file.
3. Refactor the MinidumpWriter class such that it can later use different
   derived implementations of LinuxDumper.

BUG=455
TEST=Tested the following:
1. Build on 32-bit and 64-bit Linux with gcc 4.4.3 and gcc 4.6.
2. Build on Mac OS X 10.6.8 with gcc 4.2 and clang 3.0 (with latest gmock).
3. All unit tests pass.
Review URL: http://breakpad.appspot.com/340001

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@902 4c0a9323-5329-0410-9bdc-e9ce6186880e

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/linux/minidump_writer/linux_dumper_unittest.cc b/src/client/linux/minidump_writer/linux_dumper_unittest.cc
index 6f4e0e44..cf389b57 100644
--- a/src/client/linux/minidump_writer/linux_dumper_unittest.cc
+++ b/src/client/linux/minidump_writer/linux_dumper_unittest.cc
@@ -225,7 +225,7 @@ TEST(LinuxDumperTest, VerifyStackReadWithMultipleThreads) {
 
   ThreadInfo one_thread;
   for(size_t i = 0; i < dumper.threads().size(); ++i) {
-    EXPECT_TRUE(dumper.ThreadInfoGet(dumper.threads()[i], &one_thread));
+    EXPECT_TRUE(dumper.GetThreadInfoByIndex(i, &one_thread));
     // In the helper program, we stored a pointer to the thread id in a
     // specific register. Check that we can recover its value.
 #if defined(__ARM_EABI__)